Are sympathetic nerves innervating blood vessels normally active, and can they be modulated up or down in activity level?

Answers

Answer 1

Yes, sympathetic nerves innervating blood vessels are normally active, and their activity level can be modulated up or down.

The sympathetic nervous system plays a crucial role in regulating blood vessel tone, which affects blood pressure and blood flow to different parts of the body. Under normal conditions, sympathetic nerves maintain a baseline level of activity that keeps blood vessels partially constricted.

This helps to maintain blood pressure and distribute blood flow to where it is needed most. However, sympathetic nerve activity can be increased or decreased in response to various stimuli, such as stress, exercise, or changes in body position. This allows the body to quickly adjust blood vessel tone and blood flow in response to changing demands.

For example, during exercise, sympathetic nerve activity is increased to increase blood flow to the working muscles. Conversely, during relaxation, sympathetic nerve activity is decreased, which allows blood vessels to dilate and decrease blood pressure. Overall, sympathetic nerve activity is tightly regulated and can be modulated up or down to maintain cardiovascular homeostasis.

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Related Questions

Science Concepts
How do the science concepts connect to the evidence and reasoning to help answer the question? Identify the concept first, then describe/explain how it relates to your evidence and reasoning.

Concept: Cause and Effect - Events generally have a cause or action that triggers a response. Many times, you will observe the effect first, and then think about what may have caused this to happen.

Identify a Cause and Effect Relationship within the topic of Evolution.

Answers

One example of a cause and effect relationship within the topic of evolution is natural selection. The cause of natural selection is the variation that exists within a population.

The effect of natural selection is that the individuals with traits that are better adapted to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring. This results in changes in the frequency of traits within a population over time, ultimately leading to the evolution of new species.

Evidence for this cause and effect relationship can be seen in the fossil record, as well as in observations of organisms in modern-day environments. By observing the traits that are present in different populations and the environments in which they live, scientists can use reasoning to explain how natural selection has led to the evolution of different species.

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Interneurons are neurons:_________
a. solely devoted to the autonomic system.
b. solely devoted to activation of muscles.
c. that connect to other neurons.
d. that take care of other neurons.

Answers

Interneurons are neurons: c. that connect to other neurons.

What do neurons with interneurons do?

Interneurons, as their name indicates, are the intermediary cells that link spinal motor and sensory neurons. Interneurons can exchange impulses with one another as well as with sensory and motor neurons, producing circuits of varying degrees of complexity.

Only the central nervous system contains interneurons, sometimes referred to as association neurons. i.e., found in the brain and spinal cord but not in the nervous system's peripheral portions

In fact, the enteric plexuses are unusual within the ANS in that they house excitatory and inhibitory enteric motor neurons, primary sensory neurons, and vast networks of interneurons.

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pleas answers this question i don't know it​

pleas answers this question i don't know it

Answers

Answer:

d

Explanation:

stomata help retain water so a plant in a rainforest will not need a lot of them.

Answer is D
Water detainment won’t need extra water

The molecules which move large molecules into and out of the cell are known as

Answers

Answer:

"Endocytosis" is a type of active transport that moves particles, such as large molecules, parts of cells, and even whole cells, into a cell.

Explanation:

Hope It Helps

protein synthesis takes place in: group of answer choices the nucleus vacuoles none of these lysozomes the cytoplasm

Answers

Protein synthesis takes place in the cytoplasm.

Where does protein synthesis occur?

The process of protein synthesis involves three main stages: initiation, transcription, and termination. During initiation, the ribosome binds to the mRNA molecule and starts scanning for the start codon. Then, during transcription, the ribosome reads the genetic code on the mRNA and synthesizes the corresponding amino acid sequence. Finally, during termination, the ribosome reaches a stop codon and releases the newly synthesized protein. All of these stages take place in the cytoplasm.


The process begins with transcription, which occurs in the nucleus, where the DNA is transcribed into mRNA. After transcription, the mRNA is transported to the cytoplasm. Once in the cytoplasm, the process of translation begins with initiation, where the ribosome assembles and starts reading the mRNA. Translation continues until it reaches the termination signal, at which point the protein is released and the process is complete.

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What was the key finding that enabled Meselson and Stahl to settle on ONE hypothesis? Which hypothesis did their findings support?

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The key finding that enabled Meselson and Stahl to settle on ONE hypothesis was that the DNA replication process is semi-conservative.

Their experiment involved growing bacteria in a medium containing heavy nitrogen and then switching them to a medium with light nitrogen. By analyzing the density of the DNA using centrifugation, they found that the new DNA contained both heavy and light nitrogen, indicating that each strand of the original DNA served as a template for the synthesis of a new complementary strand. This finding supported the semi-conservative hypothesis of DNA replication, it is the process through which cells make copies of the genome's DNA. A cell must first copy (or duplicate) its entire genome before it can divide, ensuring that each daughter cell has a complete genome upon division.

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What is differentiate between mitosis and miosis?

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The main difference between mitosis and meiosis is their purpose and the resulting number of daughter cells.

Mitosis and meiosis are both types of cell division. Mitosis is the process of dividing a single cell into two identical daughter cells. Meiosis, on the other hand, is the process of dividing a single cell into four genetically diverse daughter cells.

There are several key differences between mitosis and meiosis. One of the biggest differences is the number of cell divisions that occur.

In mitosis, there is only one round of cell division, resulting in two identical daughter cells. In meiosis, there are two rounds of cell division, resulting in four genetically diverse daughter cells.

Another difference between mitosis and meiosis is the way in which genetic information is passed on. In mitosis, genetic information is replicated and passed on equally to both daughter cells. In meiosis, genetic information is shuffled and recombined, resulting in genetic diversity among the daughter cells.

In summary, the main differences between mitosis and meiosis are the number of cell divisions that occur and the way in which genetic information is passed on.

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how much more atp is generated from glucose 6-phosphate, compared to glucose, when it is metabolized by the glycolytic pathway? 2

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Glucose 6-phosphate produces 2 ATP more than glucose when it is metabolized by the glycolytic pathway. The glycolytic pathway is the process of breaking down glucose to release energy.

It occurs in the cytosol of the cell and consists of ten enzymatic steps. The glucose molecule is converted into two molecules of pyruvate. This pathway generates energy by producing ATP through the process of substrate-level phosphorylation. In the first step, glucose is phosphorylated by ATP to produce glucose 6-phosphate.

This is an irreversible step and ensures that glucose enters the pathway and does not leave. By the end of the pathway, two molecules of ATP are generated by substrate-level phosphorylation. The net gain of ATP in the process of glycolysis is 2 ATP. In summary, glucose 6-phosphate generates 2 ATP more than glucose when it is metabolized by the glycolytic pathway.

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Urgent. will mark brainiest. Explain what happens in the nervous system when your finger is hurt. Please actually answer!

Answers

Motor neurones are activated and the muscles of your arm contract, moving your hand away from the sharp object.

in adolescence, fsh stimulates primary oocytes to complete meiosis i, resulting in a polar body and a .

Answers

During meiosis I, the primary oocyte divides asymmetrically, producing two cells of unequal size. The larger cell is called the secondary oocyte, which contains most of the cytoplasm and organelles.

In adolescence, FSH (follicle-stimulating hormone) stimulates primary oocytes in the ovaries to complete meiosis I. This process results in the formation of a polar body and a secondary oocyte. The smaller cell is known as the first polar body, which contains a minimal amount of cytoplasm. It's important to note that the secondary oocyte is arrested in metaphase II of meiosis and will only proceed to complete meiosis II if fertilization occurs. If fertilization occurs, meiosis II The secondary oocyte, with its haploid set of chromosomes, is released during ovulation and is capable of being fertilized by a sperm cell.

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In glucose,each carbon forms how many bonds, and of what type?

Answers

four covalent bonds. carbon-carbon, carbon-hydrogen, carbon-oxygen, and oxygen-hydrogen

Compare the exponential model and the logistic model of population growth. NEED FOUR SENTENCES

Answers

Answer:

When the resources are infinite (cyclic), the population exhibits exponential growth, resulting in a J-shaped curve ... In logistic growth, population expansion decreases with the scarcity of resources. It turns off when the carrying capacity of the environment is reached, resulting in an S-shaped curve.

A. What are the two best environments to look for fossils? (2 points)

Answers

Answer:

Deserts, Beaches and other sandy environments :)

Explanation:

Answer:

It is often found in deserts, beaches, and other sandy environments. Shale is formed from particles of mud. Good places to find fossils are outcrops. An outcrop is a place where old rock is exposed by wind and water erosion and by other people's digging.

Explanation:

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developmental scientists are interested in the role of culture in development. according to their findings, which of the following cultural groups is most likely to focus holistically on interrelationships rather than analytically?

Answers

East Asians tend to prefer holistic thinking to analytical thinking.

What is the difference between Holistic thinkers and Analytic thinkers?Holistic thinking is a complex study of the whole. For business organizations, holistic thinking considers their purpose, values, functions in the environment, processes and structures. It is the basis for developing business design structures, systems thinking, and strategy formation. Analytic thinking is to identify and define problems, extract key information from data, develop viable solutions to identified problems, test and validate root causes of problems, and provide solutions for identified problems You should be able to develop a solution.

Analytical thinkers focus on individual objects and classify them based on their attributes. Holistic thinkers see the context as a whole and focus on the relationships between objects.

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Which one of these are possible results?

Group of answer choices


Seeing the flowers on a plant


Counting the leaves on a plant


The actual number of new leaves on a plant


How much sunlight you put the plant in


How often you watered the plant


Seeing the pretty leaves on a plant

Please answer QUICKLY!!

Answers

A possible result would be the actual number of new leaves on a plant.

What are results?

Results are the outcome of investigations.

Results are unique from observation. Observations are the information we sense from a phenomenon. Results, on the other hand, are the information that we observed and recorded.

Going by these definitions:

Seeing the flowers on a plant will be an observation.

How much sunlight you put the plant in is a variable.

How often you water the plant is also a variable.

Seeing the pretty leaves on a plant is an observation.

The only option that is a result is the actual number of new leaves on a plant.

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an immunologist is discussing endotoxin production. which information should the immunologist include? endotoxins are produced by:

Answers

Endotoxin can be produced by Gram-negative bacteria.

How can gram-negative bacteria produce endotoxin?

There is lipopolysaccharides in the cell wall of gram-negative bacteria. Endotoxin is nothing but a lipopolysaccharide. The reactions of endotoxin is quite harmful for our bodies. It can produce anaphylactic shock and even death of some patients. These endotoxins are released when the bacteria is in the verge of death. These endotoxins are water soluble also. These endotoxins are basically pyrogens. These toxins can stimulate strong immune response. Whenever the gram-negative bacteria are killed the immune cells, endotoxins are released in the circulatory system. This release of endotoxin can majorly harm liver which leads to fever, diarrhea etc. Endotoxemia means the presence of endotoxin in the blood. Endotoxemia leads to sepsis(Infection in full body).

So, Endotoxin can be released by gram-negative bacteria.

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Which statement can be best supported by the fossil record

Answers

Answer:

Many organisms that lived in the past are now extinct .

Explanation:

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How does RNA polymerase know where to start transcribing a gene into mRNA?RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene.Transfer RNA acts to translate the message to RNA polymerase.The ribosome directs it to the correct portion of the DNA molecule.It starts at one end of the chromosome.

Answers

The RNA polymerase knows where to start transcribing a gene into mRNA because the RNA polymerase starts when the enzyme attaches to a certain nucleotide sequence called a promoter at the beginning of a gene (option a).

What is the RNA polymerase enzyme?

RNA polymerase  is an enzyme required to add nucleotides in the RNA during the process of transcription, which is fundamental to expressing the info contained in the genes.

Therefore, with this data, we can see that RNA polymerase is a fundamental enzyme protein that binds to DNA at specific sites called promoters.

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Using Newton's second law explain how a rocket can have an increase in acceleration over time

Answers

According to Newton's second law: the acceleration of an object is inversely proportional to it's mass, so if you decrease it's mass while keeping the net force the same, the acceleration will increase.

Answer:

According to Newton's second law: the acceleration of an object is inversely proportional to it's mass, so if you decrease it's mass while keeping the net force the same, the acceleration will increase.

Explanation:

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OH OH OH OK BIG QUESTION HERE I NEED TO KNOW THE ANSWER BECAUSE MY TEACHER NEVER GAVE ONE!!!!! ok sorry, I can't believe I forgot this question till now! ok ok ok ok k k k k k k k. You know the experiment where they put a baby or like baby monkeys in cages with no parent and like they were alone? I don't remember the name of this experiment but yeah anyway, after like a few days or so they went back to check on the babies and they were smashing their heads on the cage and kinda insane. basically, it proved that people need affection and to be around others or we will go insane. Here's my question antisocial people, people that don't like hugs or being touched? That's like saying you just don't like food...right?!?!?! (also before you get all emo on me at say something like " oh you just don't get it prep you have happiness :(", lol sorry that was really funny, anyway yeah I'm antisocial too...probably why I thought about this question...um anyway yeah please answer my question)

Answers

Answer:

Anti- Social people just arent a fan of people always being around and being all up onthem. They like alone time because they are just born that way, ( i think)

Explanation:

In most animals, the ______ state of the life cycle is much larger than the ______ state.

Answers

In most animals, the diploid; state of the life cycle is much larger than the haploid state.

life cycle, in biology, is the collection of modifications that the participants of a species go through as they pass from the beginning of a given developmental degree to the inception of that same developmental degree in the next era.

A life cycle method can help us make choices. It implies that everybody in the whole chain of a product's lifestyles cycle, from cradle to grave, has an obligation and a function to play, thinking of all of the applicable effects on the financial system, the environment, and society.

A existence cycle is described as the entire succession of adjustments gone through by way of an organism all through its lifestyles. a brand new cycle takes place whilst the same set of adjustments is begun. All organisms undergo stages of improvement. Environmental situations which include water, temperature, and mild have an effect on the improvement of organisms.

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What does the word
ORGANELLE mean, and why do think cells have
organelles?

Answers

Answer:

an organelle is any of a number of organized or specialized structures within a living cell. I think cells have organelles because organelles are found in virtually all eukaryotic cells. They carry out essential functions that are necessary for the survival of cells – harvesting energy, making new proteins, getting rid of waste and so on.

Explanation:

true or false: parrot behavior is fairly consistent across species and veterinarians do not need to modify their approach based on species alone true false

Answers

False. Veterinarians need to modify their approach based on the species of the parrot. Parrot behavior can vary significantly across species, so understanding species-specific behavior is important.

While there may be some general behavior patterns that are common across parrot species, there can also be significant differences in behavior that require specific approaches. For example, some parrot species may be more social or more territorial than others. Understanding these species-specific behaviors can help veterinarians provide better care and treatment for their patients.

Additionally, certain species may have unique health concerns that require specialized knowledge and treatment. For example, macaws are prone to feather-picking and require specialized environmental and dietary considerations to prevent this behavior. Therefore, it is important for veterinarians to have a thorough understanding of the behavior and specific needs of each parrot species in order to provide the best possible care.

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Explain how diffusion is used to support the life processes of animals.

Answers

Answer:Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow.

Explanation:Diffusion is important to cells because it allows them to gain the useful substances they require to obtain energy and grow, and lets them get rid of waste products. This table shows examples of substances required by cell and associated waste products.

Oxygen and glucose react to form carbon dioxide and water along with ATP (a source of energy) in the process of aerobic respiration. Therefore, oxygen and glucose must be taken up by the cell, and typically the concentration of these molecules outside the cell is greater than inside. Therefore, the overall net movement of these molecules will be down the concentration gradient, and they will move into the cell via diffusion. Similarly, the carbon dioxide produced is a waste product and moves out of the cell, again via diffusion down its concentration gradient.

Before a cell divides, it
completes the action in the
image. What is this process
called?
A. DNA replication
B. Translation
C. Transcription
D. Sexual Reproduction

Answers

The answer is B translation

How does the cell theory contribute to understanding cell organization (cite the info)

Answers

Answer:

The cell theory is a widely accepted explanation of the role of cells in living things. It is important because it lays the foundation for scientists' understanding of cells and sets the distinction between living and non-living things.

Cells are the basic unit (or building block) of life.2. All living things are made of cells.3. Cells come from other cells.

Explanation:

Write each phrase as an algebraic expression.
1. Seven times the answer of x squared plus two times x plus four
2.half of the answer of two times x plus eight
3. Six times x squared plus negative three
4. Fifteen times x plus y divided bt thirteen
5. some number minus two times another number
6. the square of x subtracted from two
7. Four times x plus five times y squared
8. some number minus another number all multiplied by two


Please answer these right for me im begging you. I have plenty of points to give.

Answers

The algebraic expression will be:

7 × [(x² + 2) × (x + 4)]

1/2( 2 × x + 8)

6 × (x² - 3)

15 × (x + y/13)

x - (2 × y)

2 - x²

(4 × x) + (5 × y²)

(x - y) × 2

How to illustrate the expression?

Thwme phrase as an algebraic expression will be:

1. Seven times the answer of x squared plus two times x plus four.

= 7 × [(x² + 2) × (x + 4)]

2.half of the answer of two times x plus eight

= 1/2( 2 × x + 8)

3. Six times x squared plus negative three

= 6 × (x² - 3)

4. Fifteen times x plus y divided by thirteen

= 15 × (x + y/13)

5. some number minus two times another number

x - (2 × y)

6. the square of x subtracted from two

2 - x²

7. Four times x plus five times y squared

(4 × x) + (5 × y²)

8. some number minus another number all multiplied by two

(x - y) × 2

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how does the ribosome know what amino acid to to add next when building a polypeptide?

Answers

The ribosome knows what amino acid to add next by reading the mRNA. The mRNA contains a code that the ribosome can interpret to determine what the next amino acid should be. This code is known as the genetic code and is made up of three-base sequences known as codons.

How the Ribosome Determines Which Amino Acid to Add Next in a Polypeptide Chain

The ribosome is responsible for building proteins by assembling amino acids into a polypeptide chain. It does this by reading the mRNA molecule and interpreting the genetic code contained within it. This code is made up of three-base sequences known as codons. Each codon corresponds to a specific amino acid, which the ribosome uses to determine what the next amino acid should be added to the chain. By reading the mRNA, the ribosome knows which amino acid to add next, thus allowing it to assemble the polypeptide chain and create the finished protein.

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Explain how thunderstorms form.

Answers

Answer:

Thunderstorm form when warm,moist air rises into cold air

Name the process by which the present diversity of plants and animals arose from the earliest and primitive organisms

Answers

The process is called evolution, specifically biological or organic evolution.

What is evolution?

The process of change in the inherited features of populations of organisms over many generations is called evolution. Genetic diversity, natural selection, mutation, gene flow, and genetic drift are some of the forces that propel it. Biology's foundational idea of evolution is what gives life on Earth its diversity. It examines the relationships between species and the ways in which they have evolved to the various habitats in which they dwell. Charles Darwin and Alfred Russel Wallace initially put forth the theory of evolution in the 19th century, and it has since been backed by an abundance of empirical data from disciplines like genetics, palaeontology, and biogeography.

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Verify experimentaly that the exterior angle triangle is equal to sum of its two non-adjacent interior angles of a trianglewill be marked as brainliest The oil payzone in a well is sandstone. After a long period of production, the permeability reduces very seriously. It is considered to continue oil production by using water injection, but water can not be injected. Please analyze the reasons of serious permeability decline.A sandstone oil payzone has high content of smectite. The content of calcium and barium ions is high in formation fluid. In order to control formation damage, how to consider the working fluid? f(x) = -x+5, solve for x when f (x) =-10 On an expressway, the recommended safe distance between cars in feet is given by 0.016v2+v- 6 where v is the speed of the car in miles per hour. Find the safe distance when v = 70 miles per hour. Please help with thisss when an advertising campaign for a new product is first launched, which type of advertising would be most helpful in building awareness? multiple choice question. who took the lead in developing the ""kathy love"" persona? how did it happen? What is the distance from one peak to the next peak called?(multiple choice)a. crestb. wavelength c. amplitude d. resting point(choose 1 or more) Which is an abstraction included in a list of concrete objects? A. The bobbin B. The mangle C. The code D. The needleNO LINKS! Excerpt from AppetiteWill WordyIn a house the size of a postage stamplived a man as big as a barge.His mouth could drink the entire riverYou could say it was rather largeFor dinner he would eat a trillion beansAnd a silo full of grain,Washed it down with a tanker of milkAs if he were a drain.1) Which does NOT describe how much the man can eat or drink?esA) lived a man as big as a barge.B) Washed it down with a tanker of milkC) His mouth could drink the entire riverD) For dinner he would eat a trillion beans Colette has multiple sources of credit card debt and wants to combine her payments and lower her overall interest rate. Which type of loanwould be the best for her to inquire about? Which detail best shows Ruth trying to persuade Robert to stay? A. Ive loved you right along.B. You know I cant.C. And you saidyou loved me!D. Our very own star. How many moles of rbi are required to make 350 ml of a 3. 00m solution? Fill in the blank with the appropriate form of "pouvoir".Est-ce qu'ils aller avec toi?peuventpouventpoulentpeulent A torsional pendulum has a centroidal mass moment of inertia of 0.65 kg-m2 and when given an initial twist and released is found to have a frequency of oscillation of 200 rpm. Knowing that when this pendulum is immersed in oil and given the same initial condition it is found to have a frequency of oscillation of 180 rpm, determine the damping constant for the oil. The damping constant for the oil is x+4x+4please solve A regular pattern of stressed or unstressed syllablesA dictionB rhymeCmeterDform what's the greatest common factor of the expression 2x(4x+5) a bar magnet with north pole facing down falls through a coil from rest. how does the induced current behave during this process? (4x+5)-(4x-5) simplify the expression