Regulating Body Temperature - Homeostasis
In order to maintain the body temperature the body...
- contains sweat glands
- network of capillaries just under the surface
If the core temperature is too high
- blood vessels dilate (get wider)
- more blood flows through the capillaries & more heat loss from skin
- Sweat glands sweat more
- cools the body as it evaporates
If the core body temperature is too low, then:
- blood vessels constrict (get narrower)
- reduces flow of blood through capillaries & reduces heat loss
- shivering muscles
- contraction needs respiration, which releases some energy as heat
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Homeostasis is when the body's internal environment is kept constant.
Since amino acids cannot be stored in the body the excess amino acids:
- Are first broken down...
- It is then made into urea in the liver...
- After which the kidneys filter urea out of the blood...
- and then it forms urine and is stored in bladder!
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