Kidneys

Question 1

Diuretics

Question 2

• doesnt want reabsorption so there

Question 3

• A diuretic is a type of chemical that causes the kidneys to make more urine

Question 4

be move pee

Question 5

• Diuretics cause the body to get rid of extra fluid and salt (can cause dehydration)

Question 6

• They are used to treat high blood pressure and water retention

Question 7

• present in caffeine & alcohol

Question 8

Osmoreceptors and the hypothalamus

Question 9

• Osmoreceptors are cells that are sensitive to osmotic pressure

Question 10

• Most osmoreceptors are in the hypothalamus → part of the brain that regulates hunger

Answer 10

thirst

Question 11

pressure

Answer 11

body temperature

Question 12

wants more t20 reaboratio

Question 13

• Osmotic pressure is the force generated as water moves by osmosis

Question 14

•

Question 15

High osmotic pressure = “more salty blood” = low blood volume and pressure

Question 16

a pee is more yellow

Question 17

*ADH is in

Question 18

• Low osmotic pressure = “less salty blood” = high blood volume and pressure •

Question 19

collecting ADH (antidiuretic hormone) function

Question 20

Wants less H20

Question 21

ducts

Question 22

• ADH is produced in the hypothalamus but released by the pituitary gland

Question 23

reabsoption & pee is

Question 24

less yellow

Question 25

• ADH increases water reabsorption in the collecting ducts of the nephron in the kidneys

Question 26

• ADH released in response to dehydration (detected as “salty” blood by osmoreceptors)

Question 27

• High osmotic pressure (salty blood) → More ADH → More water retention

Question 28

• Low osmotic pressure (less salty blood) → Less ADH → Less water retention

Question 29

Mechanism of Action

Question 30

• ADH binds to receptors in the collecting ducts of the nephron

Question 31

• Result: Increased water reabsorption in the collecting ducts

Question 32

• Increased blood volume and pressure

Question 33

• Decreased urine volume (more yellow)

Question 34

Hypothalamus creates

Question 35

teclings of thirst.

Question 36

Hypothalamus detects

Question 37

higher concentration

Question 38

of solutes in blood.

Question 39

Water level drops

Question 40

below normal range.

Question 41

Posterior pituitary

Question 42

releases more ADH.

Question 43

Homeostasis:

Question 44

Water level in blood

Question 45

The person drinks

Question 46

water

Answer 46

ADH stim-

Question 47

ulates kidneys

Question 48

to reabsorb

Question 49

more water

Question 50

Kidneys reabsorb

Question 51

less water.

Question 52

Water level rises

Question 53

above normal range.

Question 54

Pituitary releases

Question 55

less ADH.

Question 56

Hypothalamus

Question 57

detects low

Question 58

solute concentration.