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Kazeer [188]
2 years ago
13

What is the purpose of a valve in the heart?

Medicine
1 answer:
jeyben [28]2 years ago
8 0

Answer:

There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart).

Explanation:

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A doctor or pharmacist? who can help me, what is that word? pleaseeee :(​
AlekseyPX

Answer:

Doctor

Explanation:

You can count the letters and there appears to be 6 letters which matches the word doctor opposed to the word pharmacist that has 10 words.

8 0
2 years ago
When body temperature rises, a center in the brain initiates physiological changes to decrease the body temperature. This is an
boyakko [2]

Answer:

Negative feedback.

Explanation:

Body's homeostasis is maintained by two feedback mechanism known as positive feedback and negative feedback. Most processes in our body is controlled by the negative feedback mechanism.

The negative feedback mechanism in which the final product of the reaction decreases the further secretion of that product. In case of the body temperature rise, brain canter decreases the body temperature is controlled by negative feedback. The high level of the substance decreases its further secretion in case of maintenance of body temperature.

Thus, the correct answer is option (c).

6 0
3 years ago
Dr. Richards is feeling overwhelmed because she has several important tasks on her to-do list that she needs to accomplish over
uysha [10]

Answer:

Focus on one task at a time. That's because if it overwhelms you, don't do it all. You'll get even more overwhelmed.

3 0
3 years ago
Read 2 more answers
A person who answered NO to all of the hypnotic suggestibility questions would likely be _______ to the hypnosis tasks.
tatiyna

Answer:

The answer is: very unresponsive

Explanation:

they won’t give an answer as to why

5 0
3 years ago
Read 2 more answers
What are the steps of tissue repair? What cell types participate and in what way?
bearhunter [10]

Answer:

The most frequently damaged tissues are the skin and mucosa, which causes the body to activate a repair process consisting of the following steps:

1- Inflammation: This process involves the cells of the immune system, white blood cells, antibodies, lymphatics. All these cells work together, once the vessels expand, they act producing an inflammation process where coinside these cells eliminating necrotic tissue, bleeding and coagulation is formed.

2- Organization: In this step, the clot begins to form in granulation tissue that is a tissue composed of several elements and that goes from the central part of the lesion to the periphery. In this stage new capillaries grow, fibrolastic tissues are formed that produce growth factors and collagen fibers.

3- Regeneration: A superficial epithelial tissue begins to grow under the granulation tissue. As the underlying fibrous tissue matures and becomes fibrous until it finally resembles the adjacent skin. Finally forming a fully regenerated epithelium.

8 0
2 years ago
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