Kidneys & control of water balance Flashcards

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1
Q

how does illness affect osmoregulation

A

illnesses that cause fever, vomiting, and diarrhea can result in dehydration which lowers the bloods water concentration levels.

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2
Q

why is too much salt bad for osmoregulation

A

makes the blood ion concentration too high

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3
Q

how does exhalation affect osmoregulation

A

when we expire, water in the lungs leave our body in the breath

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4
Q

how does sweating affect osmoregulation

A

water, ions, and urea are lost in sweat

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5
Q

why must ion levels be kept relatively constant

A

in order to control diffusion and osmosis between body cells

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6
Q

which body part monitors the volume of water in the blood

A

Hypothalamus

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7
Q

how is Urea formed

A

when the digestion of proteins forms excess amino acids which can’t be stored in the body

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8
Q

what is deamination

A

the excess amino acids undergo this process in the liver to produce ammonia which is then converted into urea which is then excreted as urine.

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9
Q

why is urea toxic

A

too much urea in the bloodstream can harm cells and tissues

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