ch 26

Question 1

Majority of water (66%) is ___

Answer 1

intracellular = inside the cell

Question 2

34% is extracellular water of that…..

Answer 2

1. 80% is interstitial water around the cell
2. 20% is blood plasma

Question 3

females vs males water

Answer 3

females 55% vs. males 60%

Question 4

Increase in lipid content =

Answer 4

decrease in water content

Question 5

infants are __% water

Answer 5

75%

Question 6

water gains

Answer 6

a. Drinking fluids = most
b. Foods
c. ETS (electron transport system) = least.

Question 7

water loss

Answer 7

a. Urine = most
b. Perspiration and breathing
c. GI tract (poop) = least

Question 8

regulation of water gains

Answer 8

thirst center = hypothalamus

Question 9

Regulation of water loss:
ADH and aldosterone=
ANP and hyperventilation, vomiting, burns, increased water outpu ever, diarrhea=

Answer 9

decreased water output
increased water output

Question 10

normal range pH

Answer 10

7.35-7.45

Question 11

acidosis ph

Answer 11

below 7.35

Question 12

alkalosis ph

Answer 12

above 7.45

Question 13

Mechanisms for maintaining H+ concentration in the body

Answer 13

a. Buffer systems (phosphate, bicarbonate and protein)
b. Exhalation of CO2 = increase in body pH
c. Excretion of H+ by the kidney (antiporter exchange = H+ secretion, Na+
reabsorption)