Excretion Flashcards

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1
Q

What two functions do the kidneys carry out?

A

Osmoregulation

Excretion

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2
Q

order of structure of nephron

A
Bowmans Capsule
Proximal convoluted tubule
Loop of Henle
Distal convoluted tubule
collecting duct
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3
Q

Whats ultrafiltration?

A

Blood filtered under pressure

forced out of the blood in the glomerulus to make glomerular filtrate

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4
Q

Whats in glomerular filtrate?

A
Water 
Salts
Urea
Glucose
Hormones
Amino acids
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5
Q

Describe the reabsorption of water by the collecting duct

A

The permeability of collecting duct changes. Controls how much water reabsorbed from urine back into blood

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6
Q

Why does selective reabsorption of glucose happen at the proximal convoluted tubule

A

Because you need glucose for respiration, its a useful molecule

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7
Q

Describe the role of ADH in regulating the water content of the blood

A

Hormone made in pituitary gland

ADH makes the walls of the collecting ducts more permeable to water

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8
Q

What does urine contain?

A

Water
Urea
Ions

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