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pshichka [43]
3 years ago
12

Which structures are part of the human nervous system?

Health
2 answers:
FromTheMoon [43]3 years ago
6 0
C. Brain, spinal cord, and nerves
Fed [463]3 years ago
5 0

Answer:

Brain spinal cord and nerves

Explanation:

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______ is the involuntary movement of the muscles that move food through the digestive system.
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<u><em>Digestion</em></u>

Explanation:

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Like hair, nails consist mainly of: <br> A. Melanin <br> B. Keratin <br> C. Sebum <br> D. Cuticles
Mashcka [7]
They are most mainly consists of "Keratin"

So, option B is your answer.

Hope this helps!
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3 years ago
Which is the most likely reason that a doctor might require a pregnant woman to get ultrasounds more frequently?
IRINA_888 [86]
Let's start from the beginning.

Ultrasounds are a type of radiology equipment. Ultrasounds(sonography) can be used to see images inside of the body, including kidneys, uterus and many other internal organs.

Ultrasounds are commonly used for pregnant individuals.another common use is to ee the brain and hips in infants

There can be many complications in a pregnancy. Ultrasounds can determine the sex of the fetus, see if there are amino bands around the limbs( which can cause limbs to fall off, etc. Most ob/gyns want to keep the pregnant individual calm and healthy as well of the fetus.

7 0
3 years ago
How does breathing change during
Dafna11 [192]

Answer: Oxygen gets carried away on the red blood cells, and carbon dioxide is expelled into the air. The exchange of these two gases takes place without much fanfare when the body is at rest.

A rapid rate of breathing can occur normally after exercise. In addition, panic states and high altitude climbs can also raise the respiratory rate. When these conditions occur, individuals may have a variety of symptoms related to pH changes in their bodies caused by the hyperventilation

Your body needs oxygen to breathe, which it takes from the air around you, into your lungs, to your heart - where it is pumped to your muscles and organs. When the oxygen is used by your muscles, carbon dioxide is produced, which needs to be removed. So as the new oxygen goes into your muscles, the carbon dioxide from the last pump is taken out, where it is sent all the way back round to the heart, and then back to your lungs, and out of your mouth, back into the air.

So, rebreathing breathed air increases the carbon dioxide concentration in you blood, triggerring you body's response of increased breathing in an attempt to regain oxygen and get rid of carbon dioxide.

Explanation:

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