Circulatory System

Question 1

transports the oxygenated blood from the heart and lungs all throughout the body thru the arteries, and then the oxygen depleted blood is returned to its origin thru the help of the veins.

Answer 1

Circulatory System

Question 2

helps in the coagulation process, regulates the body temperature and assists the body in fighting diseases.

Answer 2

Circulatory System

Question 3

two main components of Circulatory System

Answer 3

the Cardiovascular system and the Lymphatic system

Question 4

hollow muscular organ

Answer 4

heart

Question 5

how many chambers does heart have

Answer 5

four

Question 6

heart is surrounded by a thin, fluid-filled sac called?

Answer 6

pericardium

Question 7

size of the heart

Answer 7

about the same size as of a man’s clenched fist

Question 8

Layer of pericardium

Answer 8

parietal pericardium
pericardial cavity
visceral pericardium

Question 9

layers of the heart

Answer 9

epicardium
myocardium
endocardium

Question 10

thin, watery membrane in the outer layer of the heart

Answer 10

epicardium

Question 11

covers the heart and attached to the pericardium

Answer 11

epicardium

Question 12

thick layer of cardiac
muscles in the middle layer of the heart.

Answer 12

myocardium

Question 13

pumps blood to the arteries by contracting

Answer 13

myocardium

Question 14

thin layer of epithelial
cells in the inner layer of the heart

Answer 14

endocardium

Question 15

lines the valves and interior chambers.

Answer 15

endocardium

Question 16

chambers of the heart

Answer 16

right atrium
right ventricles
left atrium
left ventricles

Question 17

upper right chamber

Answer 17

right atrium

Question 18

Receives deoxygenated blood from the body

Answer 18

right atrium

Question 19

lower right chamber

Answer 19

right ventricle

Question 20

Receives the blood from the right atrium and pumps into pulmonary artery.

Answer 20

right ventricle

Question 21

upper left chamber

Answer 21

Left Atrium

Question 22

Receives oxygenated blood from the lungs
and pumps it into the left ventricle

Answer 22

Left Atrium

Question 23

lower left chamber

Answer 23

Left Ventricle

Question 24

Receives blood from the left atrium and pumps it into the aorta.

Answer 24

Left Ventricle

Question 25

valves of the heart

Answer 25

Atrioventricular Valves Semilunar valves

Question 26

tricuspid valve which is located between the right atrium and right ventricle

Answer 26

Right AV valve

Question 27

Closes as the right ventricles contracts preventing blood from flowing back to the right atrium.

Answer 27

Right AV valve

Question 28

bicuspid or mitral valve which is located between the left atrium and left ventricle

Answer 28

Left AV valve

Question 29

Closes as the left ventricles contracts preventing blood from flowing back to the left atrium.

Answer 29

Left AV valve

Question 30

pulmonary or pulmonic valve located at the entrance of the pulmonary artery.

Answer 30

Right semilunar valve

Question 31

Closes when the right ventricle relaxes preventing blood from flowing back to the right ventricle

Answer 31

Right semilunar valve

Question 32

aortic valve located at the entrance of the aorta.

Answer 32

Left semilunar valve

Question 33

Closes when the left ventricle relaxes preventing blood from flowing back to the left ventricle.

Answer 33

Left semilunar valve

Question 34

partition that separates the right from the left atria

Answer 34

Interatrial septum

Question 35

separates the right and the left ventricles

Answer 35

Interventricular septum

Question 36

receives blood supply thru the left and right coronary arteries, and coronary veins return the oxygen depleted blood from the heart muscle back to the heart.

Answer 36

Coronary Circulation

Question 37

Heart function

Answer 37

- the Coronary circulation supplies the blood and also provides drainage from the tissues - composed of the left and right coronary arteries and coronary veins

Question 38

6 functions of the heart

Answer 38

1. cardiac cycle 2. Electrical Conduction System 3. Electrocardiogram (ECG) 4. Origin of heart sound 5. Heart rate and Cardiac Output 6. Pulse 7. Blood Pressure

Question 39

Systole (contraction) & diastole (relaxation) which lasts about 0.8 seconds

Answer 39

Cardiac Cycle

Question 40

Sends electric impulses throughout the myocardium which is initiated by the Sinoatrial (SA) node (pacemaker)

Answer 40

Electrical Conduction System

Question 41

Provides the graphical representation of the cardiac cycle's activity

Answer 41

Electrocardiogram (ECG)

Question 42

The average heart rate is

Answer 42

72 beats per minute (bpm)

Question 43

refers to the volume of blood pumped per minute

Answer 43

Cardiac output

Question 44

which is the first sound as the ventricles contract or the AV valves close

Answer 44

"lubb"

Question 45

the second sound which is heard when the semilunar valves close and the ventricles relax.

Answer 45

"dupp"

Question 46

A rhythmic throbbing resulting from the alternating expansion and contraction of the artery

Answer 46

pulse

Question 47

The force which was exerted by the blood on the walls of the vessel

Answer 47

blood pressure

Question 48

Blood pressure is measured by

Answer 48

sphygmomanometer

Question 49

it is the difference between the systolic (pressure during contraction) and diastolic (pressure during relaxation).

Answer 49

Blood pressure

Question 50

normal contraction of the heart in ECG

Answer 50

Sinus Rhythm

Question 51

Amount of Cardiac output

Answer 51

5-6L per minute

Question 52

unit of blood pressure

Answer 52

mm Hg (millimeters of mercury)

Question 53

normal blood pressure

Answer 53

120 over 80

Question 54

the loop which consists of a system of blood vessels through which blood is circulated to the rest of the body

Answer 54

vascular system

Question 55

two divisions of vascular system

Answer 55

(1) pulmonary circulation (2) systemic circulation

Question 56

structures of the vascular system

Answer 56

1. arteries 2. arterioles 3. veins 4. venules 5. capillaries

Question 57

thick-walled blood vessels that carry oxygen-rich blood from the heart to the tissues of the body

Answer 57

arteries

Question 58

small-diameter blood vessels that branch out from the arteries and lead to the capillaries

Answer 58

arteriole

Question 59

tubes with thin walls that carry deoxygenated blood from tissue to the heart

Answer 59

veins

Question 60

very small veins that collect blood from the capillaries

Answer 60

venules

Question 61

fine hair-like blood vessels that connect arterioles and veins

Answer 61

capillaries

Question 62

three layers of blood vessels

Answer 62

1. tunica adventitia 2. tunica media 3. tunica intima

Question 63

outer connective tissue of blood vessel

Answer 63

tunica adventitia

Question 64

it is the middle layer of blood vessel, has muscle and elastic fiber

Answer 64

tunica media

Question 65

it is the inner layer of blood vessel, has endothelial cell

Answer 65

tunica intima

Question 66

space inside the blood vessel where the blood flows

Answer 66

lumen

Question 67

found in the veins, these are thin membranous leaflets that prevent the backflow of blood

Answer 67

valves

Question 68

the red fluid that is transported throughout the body through the circulatory system

Answer 68

blood

Question 69

two function of blood

Answer 69

1. Arterial blood 2. Venous blood

Question 70

blood is composed of

Answer 70

plasma and other formed elements

Question 71

a clear, straw-colored liquid portion of the blood which is 90% water

Answer 71

plasma

Question 72

three components of blood

Answer 72

1. Erythrocytes (red blood cells) 2. Leukocytes (white blood cells) 3. Thrombocytes (platelets)

Question 73

System of classifying human blood by the presence of antigens A and B and based on the antigenic components found on the surface of the red blood cells.

Answer 73

ABO blood group system

Question 74

system of classification of primary importance in obstetrics because of the hemolytic disease of the newborn (HDN).

Answer 74

RH blood-group system

Question 75

universal donor

Answer 75

O

Question 76

universal recipient

Answer 76

AB