1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
NeTakaya
3 years ago
15

Neurons localized within the ________ control the secretion of acth.

Biology
1 answer:
Bumek [7]3 years ago
6 0
Excitation of HPA-Axis Stress Responses

Paraventricular nucleus corticotropin-releasing hormone (CRH) neurons are activated by neural inputs from a number of possible sources (Figure 1). Stressors signaling homeostatic challenge (commonly referred to as systemic stressors) are mediated by neurocircuits providing direct excitation of paraventricular nucleus (PVN) neurons. For example, HPA-axis activation by blood loss (hemorrhage) is mediated by activation of brainstem norepinephrine neurons that project directly to the PVN. Activation of the HPA axis by fluid imbalance appears to be triggered by angiotensinergic neurons of the subfornical organ, which sense increases in circulating angiotensin II. Negative energy balance signals are relayed to the PVN by the arcuate nucleus, which activates CRH neurons by release of excitatory peptide messengers (such as neuropeptide Y and agouti-related peptide). Responses to systemic stress are thought to be reflexive, that is, they do not require the engagement of cognitive processes.

You might be interested in
Please help I really would appreciate it
vekshin1

Answer:

Light, electric

Explanation:

4 0
3 years ago
Why do plant cells have a cell wall and plant cells don’t?
Minchanka [31]
So animal cells can have various shapes, but plant cells only havethe shapes of their cell walls. That's nice for plants, because it gives them the ability to grow up and out, where they can get lots of sunlight for making their food.

In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls allow plants tohave rigid structures as varied as wood trunks and supple leaves; and vacuoles allow plant cells to change siz
Exactly why plant cell have wall and animal cell don't :-Cell walls are supporting structures that help the plant to have a fixed shape and protect it from injury. Other than that, it helps to keep the plant turgid so that it can stay firm and upright. Because when it enters a high water potential solution, as water moves in, the water exerts turgor pressure on the cell wall and the cell wall thus exerts an opposing pressure to keep water out. Hence cell wall is needed for the plant.

On the other hand, animal cells do not need to keep the structures, as they have the skeletal system to protect the organs and cushion them against any external Injuries.


This was the all information I had thank you.
5 0
3 years ago
Read 2 more answers
Darwin observed that organisms that were best able to survive and reproduce had adaptations that were...
11111nata11111 [884]

Answer:

A: Suited for their environment

Explanation:

You can automatically eliminate B and C, since they both say that animals with adaptations that won't work with their environment would have a higher survival rate. This doesn't make sense; adaptations that wouldn't suit an environment would actually lower the population's chances of reproduction and survival.
That leads us to A and D. However, A would be the correct answer. Organisms with adaptations that suited their environment would help them (since it would make the organism more compatible with their environment), rather than having no change at all.

Hope this helped!

5 0
2 years ago
E lements are _____.
Step2247 [10]

Answer:

A chemical element is a type of atom with the same number of protons in their <u>atomic</u> nuclei.

Explanation:

For an example, the atomic number of Chlorine is 17, and there is 17 protons in Chlorine.

If you have any questions feel free to ask in the comments.

4 0
3 years ago
Read 2 more answers
What are two common uses of fats in the bodies of animals?
andrey2020 [161]
Storing nutrition and keeping warm, A good example would be walruses since they have no fur to keep warm

6 0
3 years ago
Read 2 more answers
Other questions:
  • Some antibiotics inhibit trna from delivering amino acids to the ribosome. what process cannot be completed?
    6·1 answer
  • Francesco Redi disproved the idea of spontaneous generation through an experiment involving _____.
    11·1 answer
  • Air pollution ____
    6·2 answers
  • Where do you think<br> this heat lamp is being used?
    11·1 answer
  • When an earthquake occurs energy radiates in all directions from its source which is called the what
    12·2 answers
  • how energy transfers between trophic levels. Why is more energy required to produce meat and fish products than to produce grain
    9·1 answer
  • Can someone help me with this one??
    13·1 answer
  • I'm giving my 1532 points away.
    5·2 answers
  • Lorenzo pushes on a heavy crate with an applied force of 250N at an angle of 30° below the horizontal. The fo friction opposing
    12·1 answer
  • What does the volksmans canal do?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!