Biology, asked by sarfarajkhan73069, 23 hours ago

why do we yawn?
why do we sneeze ?
how to feel pulse in the wrist ?​

Answers

Answered by vanlalchhuangimary
2

lOne is that when we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.

Sneezing is a mechanism your body uses to clear the nose. When foreign matter such as dirt, pollen, smoke, or dust enters the nostrils, the nose may become irritated or tickled. When this happens, your body does what it needs to do to clear the nose — it causes a sneeze.

How to take your pulse:

Place the tips of your index and middle finger on the inside of your wrist below the base of your thumb.

Press lightly. You will feel the blood pulsing beneath your fingers.

Use a watch or clock with a second hand. Count the beats you feel for 1 minute.

Answered by nchloelove
0

answer:

  • why do we yawn?

One is that when we are bored or tired, we just don't breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.

  • why do we sneeze?

“Sneezing is simply an involuntary release of air that helps the body to get rid of irritants in our nose and throat, like allergens, dirt, and dust.” Our sneezing activity may see an uptick when we experience allergies or a cold.

  • how to feel pulse in the wrist?

Your radial pulse can be taken on either wrist. Use the tip of the index and third fingers of your other hand to feel the pulse in your radial artery between your wrist bone and the tendon on the thumb side of your wrist. Apply just enough pressure so you can feel each beat.

hope it helps :)

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