31) Which of the following is NOT a major function of sodium?

A) assists in muscle contraction

B) maintains fluid balance

C) maintains normal heart rhythm

D) maintains acid-base balance

32) Which of the following do sodium and potassium NOT have in common?

A) Rich sources of both include fresh foods, such as bananas, cantaloupe, and potatoes.

B) Both participate in maintaining fluid balance.

C) Both are involved in nerve transmission.

D) Both are major electrolytes in the body.

33) Which of the following conditions is NOT related to an electrolyte imbalance?

A) seizures

B) muscle cramps

C) heart attack

D) hypoglycemia

34) What is fluid that is found in-between cells?

A) intracellular fluid

B) interstitial fluid

C) intravascular fluid

D) synovial fluid

35) Which of the following does NOT describe tissue fluid?

A) fluid that flows between cells

B) fluid that is also called interstitial fluid

C) fluid that is found in the blood stream

D) synovial fluid found within joints

36) Which of the following is NOT a mechanism to maintain the body’s internal temperature?

A) Fluid acts as a coolant by increasing the blood flow from the warm body core to the peripheral tissue, thus cooling the body.

B) Fluid has a high capacity for heat, so it requires a great deal of energy to raise its temperature.

C) Fluid is evaporated as sweat from the skin’s surface, thus cooling the body.

D) Warmed fluids from the body’s surface return to the body’s core, thus heating the body.

37) The movement of water through a semipermeable membrane toward solutes is called

A) osmosis.

B) filtration.

C) depolarization.

D) distillation.

38) Which of the following conditions can result in extra calcium being excreted in the urine?

A) pregnancy

B) low humidity

C) diuretic use

D) high sodium intake

39) The two electrolytes that enable nerves to respond to stimuli are sodium and

A) chloride.

B) potassium.

C) phosphorus.

D) iron.

40) Of the following ethnic groups, which has the highest risk of developing hypertension?

A) Caucasian

B) Asian

C) Hispanic

D) African American