Cardiovascular Quiz / Test on Etext

Question 1

Most simply stated, the major function of the cardiovascular system is ___

Answer 1

transportation

Question 2

mediastinum, apex

Answer 2

The heart is located in the inferior _______ with its _______ pointed toward the left hip.

The heart is located in the inferior mediastinum with its apex pointed toward the left hip.

Question 3

The layer of the heart that actually contracts is the _______.

Answer 3

• myocardium

- The layer of the heart that actually contracts is the myocardium.

Question 4

The heart has _______ chambers and works as a _______ pump.

Answer 4

• four, double

- The heart has four chambers and works as a double pump.

Question 5

The _______ anchor the flaps of the valves to the walls of the ventricles.

Answer 5

chordate tendineae

Question 6

The tiny mass of cells that forms the pacemaker of the heart is called the _______.

Answer 6

• sinoatrial node

- The tiny mass of cells that forms the pacemaker of the heart is called the sinoatrial node.

Question 7

The tiny mass of cells that forms the pacemaker of the heart is called the _______.

Answer 7

• sinoatrial node

- The tiny mass of cells that forms the pacemaker of the heart is called the sinoatrial node.

Question 8

Blood that nourishes the heart is provided by the right and left _______.

Answer 8

coronary arteries

Question 9

Heart muscle is also called _______.

Answer 9

myocardium

Question 10

Which of the following do/does not ultimately drain into the inferior vena cava (IVC)?

Answer 10

Basilic vein

*Correct. This is a superficial vein, which drains the medial aspect of the arm and empties into the brachial vein, ultimately emptying into the superior vena cava (SVC).

Question 11

blood pressure

Answer 11

this is the force exerted against blood vessel walls by the blood when the heart contracts or relaxes.

Question 12

The product of the stroke volume and the heart rate is known as the _______.

Answer 12

cardiac output

Question 13

The umbilical vein carries/passes _______.

Answer 13

oxygen and foods from the placenta to the fetus

Question 14

At the arterial end of a capillary, blood pressure is _______ than osmotic pressure, and fluid flows _______ the capillary

Answer 14

more; out of

Question 15

What portion of the ECG indicates ventricular repolarization?

Answer 15

T wave

Question 16

You are not an athlete and you are not physically fit. If you suddenly partake in physical exercise, the increased demands of such vigorous exercise on your body are met primarily by _______.

Answer 16

a. all of the above - Answer
b. increased heart rate and blood volume
c. increased stroke volume
d. increased heart rate
e. increased blood volume

Question 17

Compared to an artery, the wall of a vein differs in which of the following ways?

Answer 17

• The middle tunic is thin.

* Correct. The middle coat, or tunica media, is thick in an artery and thin in a vein.

Question 18

What unique feature connects the anterior and posterior blood supplies of the brain, providing more than one route for blood to reach brain tissue in a given area?

Answer 18

Circle of Willis

Question 19

Which is the correct order of events regarding operation of the atrioventricular (AV) valves?

Answer 19

1 - Ventricles contract, forcing blood against AV flaps

2 - As the ventricles fill, AV flaps hang limply into ventricles

3 - Blood returning to the atria puts pressure against AV valves, forcing them open..

4 - Chordae tendineae tighten, preventing valve flaps from everting into the atria.

5 - AV valves close

6 - Atria contract, forcing additional blood into ventricles.

Correct Order:
3-2-6-1-5-4

Question 20

A fenestra or fenestration

Answer 20

-is an oval pore or opening, which is usually covered by a delicate membrane; a fenestra is more permeable than other regions of the plasma membrane of capillary wall cells.

Question 21

Which of the following is NOT true during ventricular systole?

Answer 21

Semilunar valves close.

Question 22

Which of the following is involved in anchoring the AV valve flaps to the walls of the ventricles?

Answer 22

Chordae tendineae

Question 23

The ____ returns oxygen-poor blood to the right atrium from all body regions below the diaphragm.

Answer 23

Inferior vena cava

Question 24

Blood exits the left ventricle in which of the following blood vessels?

Answer 24

Aorta

Question 25

Epinephrine increases the heart rate, which leads to an increase in cardiac output.

Answer 25

True

Question 26

FEBRUARY 16,,2017 MIDTERM

Answer 26

50 ITEMS
8 blood
22CV
20 LYM