Heart

Question 1

Major function of the cardiovascular system

Answer 1

Transportation

Question 2

Delivery route is through the heart…

Answer 2

vessels

Question 3

Transport medium of the heart is through

Answer 3

blood

Question 4

outermost loose fitting, superficial part of the sac

Answer 4

fibrous pericardium

Question 5

What is the double sac wall that encloses the heart

Answer 5

pericardium

Question 6

What are the roles of the fibrous pericaridum?

Answer 6

Protects the heart, anchors the heart to surrounding structures, prevents overfilling the heart with blood.

Question 7

Deep to the fibrous pericardium

Answer 7

serous pericardium

Question 8

lines the internal surface of the fibrous pericardium

Answer 8

pariteal layer

Question 9

At the base of the heart the parietal layer reflect back covering the external surface of the heart

Answer 9

Visecreal layer or epipericardium

Question 10

What two layers make up the serous pericardium?

Answer 10

Partieal layer and visecreal layer

Question 11

What are the three layers that make up the walls of the heart

Answer 11

epicardium, myocardium, endocardium

Question 12

The outer layer, which is also the visceral pericardium“upon the heart”

Answer 12

epicardium

Question 13

Known as the “heart muscle”

Answer 13

Myocardium

Question 14

Middle and thickest layer composed mainly of cardiac muscle

Answer 14

Myocardium

Question 15

Known as the “inside of the heart”

Answer 15

Endocardium

Question 16

Inner lining that covers the heart valves and is continuous with the inner lining of the great vessels

Answer 16

Endocardium

Question 17

Continuous with the endothelial lining of blood vessels

Answer 17

Endocardium

Question 18

How many chambers are in the heart

Answer 18

4

Question 19

How are the four chambers of the heart divided?

Answer 19

2 superior atria and 2 inferior ventricles

Question 20

divides the atria chambers

Answer 20

Interatrial septum

Question 21

divides the ventricle chambers

Answer 21

interventricle septum

Question 22

How are chambers of the heart divided ?

Answer 22

Longitudinally by a septum

Question 23

eceiving chambers and ineffective pumps

Answer 23

Atria

Question 24

Thick wall discharging chambers of the heart

Answer 24

ventricles

Question 25

Two visible grooves on the surface indicating boundaries of chambers and carry blood vessels

Answer 25

cornary sulcus and the anterior interventricle sulcus

Question 26

encircles junction of the atria and ventricles like a crown

Answer 26

cornary sulcus

Question 27

what seperates the right and left ventricles

Answer 27

anterior interventricle sulcus

Question 28

What are the four heart valves

Answer 28

Atrioventricular valves, semilunar valves, Tricuspid valve, mitral valve.

Question 29

Valve between atrium and ventricle

Answer 29

Atrioventricular valve

Question 30

Between the ventricle and great vessel

Answer 30

semilunar valve

Question 31

right AV valve

Answer 31

Tricuspid valve

Question 32

left AV valve

Answer 32

mitral valve `

Question 33

results of depolarization waves traveling through the heart

Answer 33

heart contraction

Question 34

The ability of the heart to beat is

Answer 34

insintrict

Question 35

true or false: the heart beat does not depend on impulses from the nervous system

Answer 35

true

Question 36

ensures the heart muscle depolarizes in an orderly and sequential manner

Answer 36

cardiac pacemaker cells

Question 37

right atrium inferior to vena cava

Answer 37

SA Node

Question 38

lower atrial septum at the junction of the A and

Answer 38

AV Node

Question 39

in the interventricular septum

Answer 39

AV bundle

Question 40

generates impulses

Answer 40

SA Node

Question 41

The node in which the impulses pause

Answer 41

AV node

Question 42

conducts impulses to the bundle branches

Answer 42

AV Bundle

Question 43

conduct the impulses through the interventrical septum

Answer 43

Bundle branches

Question 44

depolarizes the contractilecells of both ventricles

Answer 44

subendo cardial conducting network

Question 45

a region between 2 waves

Answer 45

segment

Question 46

a region that contains a segment and one or more waves

Answer 46

interval