Cardiovascular System

Question 1

Which chamber of the heart receives blood from the RA and pumps blood via the pulmonary artery to the lungs for oxygenation; a low-pressure pulmonary pump?

Answer 1

Right Ventricle

Question 2

Which chamber of the heart receives oxygenated blood from the lungs and the 4 pulmonary veins?

Answer 2

Left Atrium

Question 3

Which chamber of the heart receives blood from the LA and pumps blood via the aorta throughout the entire systemic circulation. AKA the high-pressure systematic pump. The walls of the are thicker and stronger than the RV and form most of the left side and apex of the heart?

Answer 3

Left Ventricle

Question 4

Which chamber of the heart receives blood from 3 veins (superior vena cava, inferior vena cava, and coronary sinus)

Answer 4

Right Atrium

Question 5

What prevents the backflow of the blood in the heart?

Answer 5

Heart Valves

Question 6

It prevents the backflow of blood into the Atria during Ventricular Systole.

Answer 6

Atrioventricular Valve

Question 7

The three cusps or leaflets right on heart valve

Answer 7

Tricuspid Valve

Question 8

Mitral Valve; Two cusps or leaflets on left heart valve

Answer 8

Bicuspid Valve

Question 9

Prevent backflow from aorta and pulmonary arteries into the ventricles during diastole

Answer 9

Semilunar Valve

Question 10

Prevents right valve backflow

Answer 10

Pulmonary Valve

Question 11

Prevents left valve backflow

Answer 11

Aortic Valve

Question 12

Where does blood flow after the Superior and Inferior Vena Cava?

Answer 12

Right Atrium

Question 13

Where does blood flow after the right atrium?

Answer 13

Tricuspid valve

Question 14

Where does blood flow after the tricuspid valve?

Answer 14

Right Ventricle

Question 15

Where does blood flow after the right ventricle?

Answer 15

Pulmonary semilunar valves

Question 16

Where does blood flow after the pulmonary semilunar valves?

Answer 16

pulmonary trunk

Question 17

Where does blood flow after the pulmonary trunk?

Answer 17

pulmonary arteries

Question 18

Where does blood flow after the pulmonary arteries?

Answer 18

lung tissue (pulmonary circulation)

Question 19

Where does blood flow after the lung tissue?

Answer 19

pulmonary veins

Question 20

Where does blood flow after the pulmonary veins?

Answer 20

left atrium

Question 21

Where does blood flow after the left atrium?

Answer 21

mitral (bicuspid valve)

Question 22

Where does blood flow after the mitral valve?

Answer 22

left ventricle

Question 23

Where does blood flow after the left ventricle?

Answer 23

aortic semilunar valves

Question 24

Where does blood flow after the aortic semilunar valves?

Answer 24

aorta

Question 25

Where does blood flow after the aorta?

Answer 25

body tissues (systemic circulation)

Question 26

It is the main pacemaker of the heart. It is located in the right wall just inferior and lateral to the opening of the superior vena cava.

Answer 26

Sinoatrial Node (SA)

Question 27

It is located in the interatrial septum, just anterior to the opening of the coronary sinus.

Answer 27

Atrioventricular Node (AV)

Question 28

From the AV node, it is where action potentials enters the AV bundle. The only site where action potentials can conduct from the atria to the ventricles.

Answer 28

AV bundle of HIS

Question 29

It rapidly conducts the action potential beg at the apex of the heart, upward to the

Answer 29

Purkinje Fibers

Question 30

The artery that supplies the right atrium and most of the right ventricle.

Answer 30

Right Coronary Artery

Question 31

The artery that supplies most of the left ventricle.

Answer 31

Left Coronary Artery

Question 32

2 main divisions of Left Coronary Artery.

Answer 32

Left Anterior Descending and Circumflex

Question 33

Part of the Left Coronary Artery that supplies the left ventricle and the interventricular septum.

Answer 33

Left Anterior Descending

Question 34

Part of the Left Coronary Artery that supplies blood to the lateral and inferior walls of the left ventricle and portions of the left atrium.

Answer 34

Circumflex

Question 35

It is where the blood flows after it passes through the arteries of the coronary circulation.

Answer 35

Coronary Veins

Question 36

Outer protective layer of the heart

Answer 36

Epicardium

Question 37

Middle muscular layer of the heart; makes up about 95% of the heart and is responsible for its pumping action

Answer 37

Myocardium

Question 38

Thin inner layer of the heart

Answer 38

Endocardium

Question 39

Fibrous protective sac enclosing the heart

Answer 39

Pericardium

Question 40

4 chambers of the heart

Answer 40

``` Right Atrium (RA) Right Ventricle (RV) Left Atrium (LA) Left Ventricle (LV) ```

Question 41

What are the heart valves?

Answer 41

Atrioventricular Valve Tricuspid Valve Bicuspid Valve Semilunar Valve Pulmonary Valve Aortic Valve

Question 42

Blue color

Answer 42

Unoxygenated blood

Question 43

Red color

Answer 43

Oxygenated blood