MECHANISMS THAT MAINTAIN HOMEOSTASIS OF TOTAL FLUID VOLUME

Question 1

Under normal conditions, homeostasis of total volume of water is maintained or restored primarily by adjusting what 2 things?

Answer 1

urine volume and secondarily by fluid intake

Question 2

What is when dehydration begins to develop, salivary secretion decreases, producing the sensation of thirst?

Answer 2

Regulation of fluid intake

Question 3

What is when Glomerular filtration rate, except under abnormal conditions, remains fairly constant?

Answer 3

Regulation of urine volume

Question 4

What is individual increased fluid intake to offset increased output tends to restore fluid balance

Answer 4

Regulation of fluid intake

Question 5

Rate of tubular reabsorption of water fluctuates considerably; normally adjusts urine volume to fluid intake

Answer 5

Regulation of urine volume

Question 6

Rate of tubular reabsorption of water fluctuates considerably; normally adjusts urine volume to fluid intake is influenced by what?

Answer 6

influenced by amount of antidiuretic hormone and of aldosterone

Question 7

What are the two factors that determine urine volume?

Answer 7

Glomerular filtration rate

Rate of tubular reabsorption of water

Question 8

What are the factors that alter fluid loss under abnormal conditions?

Answer 8

rate of respiration and volume of sweat secreted may alter fluid output under certain abnormal conditions; vomiting
diarrhea
intestinal drainage can produce fluid and electrolyte imbalances