Respiratory Regulation of H+

Question 1

Respiratory and renal systems are (/) systems
Act more slowly than () buffer systems but have more buffering power

Respiratory system eliminates CO2via ()
A reversible equilibrium exists in blood (carbonic anhydrase reaction)

Answer 1

physiological buffering
chemical
exhalation

Question 2

If () in blood rises (), it activates () chemoreceptors
Causes increased respiratory rate and depth

Rising plasma H+ () activates () chemoreceptors
Causes increased respiratory rate and depth

Both cause more CO2 to be removed from the blood, pushing reaction to left, which reduces H+ concentration

Answer 2

PCO2
hypercapnia
medullary
acidosis
peripheral

Question 3

Alkalosis () respiratory center
Respiratory rate and depth ()
Causing ()retention, making body more ()

Respiratory system impairment causes acid-base imbalances
() (less breathing) causes respiratory () (retain CO2)
() (more & fast breathing) causes respiratory () (expel CO2)

Answer 3

depresses
decrease
CO2,acidic
Hypoventilation,acidosis
Hyperventilation,alkalosis

Question 4

Renal Regulation:
Lungs eliminate () acid by eliminating CO2

() eliminate acids produced by cellular metabolism (phosphoric, uric, and lactic acids and ketones) to prevent metabolic acidosis

Kidney main function to prevent ()
-() of Bicarbonate

When body is in alkalosis, kidneys can:
Reabsorb LESS ()–
Reclaim ()+to acidify blood
Even during alkalosis, nephrons reabsorb more HCO3–than they excrete

Answer 4

carbonic
Kidneys
acidosis
Reabsorption
HCO3
H