Exam 4 Part 1

Question 1

In a normal cardiac cycle, what two chambers of the heart contract last?

Answer 1

Right and left ventricles

Question 2

Your patient’s blood pressure is 125/75. What is his systolic pressure?

Answer 2

125

Question 3

What specific tissue makes up the myocardium?

Answer 3

cardiac muscle tissue

Question 4

When referring to the heart, what is the anatomical term for contraction?

Answer 4

systole

Question 5

What region of the heart is also known as the pacemaker?

Answer 5

right atrium

Question 6

A person with Type B+ blood would have antibodies against what?

Answer 6

cell surface proteins for type A antigens

Question 7

Someone who is O+ can donate to which blood types?

Answer 7

A+, B+, AB+, O+

Question 8

What test is used to determine percentage of red blood cells?

Answer 8

hematocrit

Question 9

Which formed element is involved in blood clotting?

Answer 9

platelets

Question 10

Name the most common formed element in the blood.

Answer 10

red blood cells/erythrocytes

Question 11

List one possible cause of polycythemia.

Answer 11

traveling from sea level to a higher altitude, like Denver

Question 12

Which of the following helps to control platelet aggregation?

a. Streptokinase
b. Prothrombinase
c. Prostacyclin
d. Plasminogen

Answer 12

not a

Question 13

The extrinsic pathway of blood clotting is initiated with:

a. Sluggish or slowed blood flow
b. Presence of outside tissue factors in the blood vessel
c. Collapse of a blood vessel
d. A rough spot in the blood vessel wall

Answer 13

b. Presence of outside tissue factors in the blood vessel

Question 14

The process of fibrinolysis:

a. draws torn edges of damaged tissue closer together.
b. forms thrombi.
c. forms emboli.
d. dissolves clots.

Answer 14

d. dissolves clots.

Question 15

Albumin, globulins, and fibrinogen are all:

a. involved in blood clot formation.
b. required for the development of immunity. c. plasma proteins.
d. used as energy sources by cells.

Answer 15

c. plasma proteins.

Question 16

A disorder characterized by an excess of erythrocytes is known as:

a. polycythemia.
b. leukemia.
c. hemophilia.
d. anemia.

Answer 16

a. polycythemia.

Question 17

Erythropoietin is a hormone that:

a. Stimulates production and maturation of myeloid stem cells
b. Stimulates maturation of reticulocytes
c. Stimulates production and maturation of leukocytes
d. Stimulate platelet formation
e. Stimulates production and maturation of megakaryocytes

Answer 17

a. Stimulates production and maturation of myeloid stem cells

Question 18

Select the response that is not a function of the blood:

a. transports materials
b. helps regulate pH of body fluids
c. helps fight infections
d. converts excess nutrients into fats

Answer 18

d. converts excess nutrients into fats

Question 19

A monocyte is:

a. granular
b. agranular

Answer 19

b. agranular

Question 20

Formed elements constitute about __________% of the blood volume.

a. 25
b. 35
c. 45
d. 55

Answer 20

c. 45

Question 21

A blood clot is formed of blood cells entangled in protein threads called:

a. fibrin.
b. albumin.
c. thrombin.
d. fibrinogen.

Answer 21

a. fibrin.

Question 22

The purpose of hemostasis is to:

a. increase the flow of blood to the damaged area.
b. prevent blood loss from damaged vessels. c. decrease blood pressure.
d. pass leukocytes into body tissues.

Answer 22

not a

Question 23

Erythrocytes live about:

a. 80 days.
b. 120 days.
c. 160 days.
d. 200 days.

Answer 23

b. 120 days.

Question 24

The formed elements that transport oxygen and carbon dioxide are the:

a. erythrocytes.
b. basophils.
c. thrombocytes.
d. neutrophils.

Answer 24

a. erythrocytes.

Question 25

Worn-out and damaged erythrocytes are removed by the:

a. red bone marrow.
b. liver and pancreas.
c. liver and spleen.
d. pancreas and spleen.

Answer 25

c. liver and spleen.

Question 26

The average pH of blood is

Answer 26

7.4-7.6

Question 27

What is the average volume of blood for an adult male?

Answer 27

5-6 liters