42- You are at a restaurant, and a man starts to choke on a piece of steak. What

Question

42- You are at a restaurant, and a man starts to choke on a piece of steak. What must be done?

Select one:

a. a hiccup

b. coughing

c. Heimlich maneuver

d. swallowing again

43- In saltatory conduction, nerve impulses jump from one exposed region of the axon to another. This exposed region is called the ________.

Select one:

a. Schwann cell gap

b. interneurons

c. node of Ranvier

d. motor end plate

44- Which of the following is a neurotransmitter that triggers a contraction of a voluntary muscle?

Select one:

a. synapse

b. sodium

c. acetylcholine

d. action potential

45- Phospholipid molecules that prevent the alveoli from collapsing are known as ________.

Select one:

a. plasma

b. surfactant

c. laryngitis

d. mucus

46- Most nutrient absorption occurs in the small intestine, a major organ of the digestive system.

Select one:

True

False

47- The breathing center is located in the cerebrum of the brain and is responsible for the basic breathing rhythm.

Select one:

True

False

48- The hormone erythropoietin acts to stimulate cells that are located in the ________ of an adult.

Select one:

a. spleen

b. blood

c. kidneys

d. red bone marrow

49- Under the influence of atrial natriuretic hormone, you would expect to see an increase in ________.

Select one:

a. urine volume

b. plasma volume

c. sodium reabsorption

d. blood pressure

50- One of the most significant complications associated with kidney failure is ________.

Select one:

a. an inability to regulate blood pH

b. an inability to regulate blood volume

c. All of the above are significant complications.

d. edema

Explanation / Answer

42. C......Heimlich maneuver

43. C......Node of Raniver

44. C...Acetylcholine

45. B...Surfactant

46. True

47.True

48. D....Red bone marrow

49. A.. .Urine volume

50. C both a and b (inability to regulate both bllob ph and blood volume)

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