Stiner

Question 1

Changes in pH affect ____ and _____

Answer 1

ionization and enzyme activity

Question 2

hypernatremia can be caused by

Answer 2

excessive sweating

Question 3

Hypokalemia can be caused by

Answer 3

diarrhea

Question 4

a decrease in pH would ______ sympathetic tone and may lead to _______

Answer 4

sympathetic tone and may lead to cardiac dysrhythmia

Question 5

kidneys control buffering by

Answer 5

controling plasma bicarbonate synthesis and excretion of H+

Question 6

bicarbonate buffer system is most important in

Answer 6

saliva

Question 7

Major buffers of the body and buffer location (4)

Answer 7

Hemoglobin: erythrocytes
Proteins: intracellular
phosphate buffer: intracellular
bicarbonate: extracellular (saliva)

Question 8

Tissue buffering during acidemia leads to

Tissue buffering during alkalemia leads to

Answer 8

increased K concentration in plasma

Decreased K concentration in plasma

Question 9

bicarbonate buffer system

Answer 9

CO2 +H2O H2CO3 H+ + HCO3-

OH- + H2CO3 H2O + HCO3-

Question 10

When the respiration causes accumulation of CO2 _______ takes place in the kidney

Answer 10

Bicarbonate resorption

Question 11

When bicarbonate concentration decrease, ventilation rate will

Answer 11

increase