The Cardiovascular System: The Heart

Front 1

Blood enters the pulmonary trunk through the:

Back 1

Right Ventricle

Front 2

Blood entering aorta comes from the:

Back 2

Left ventricle

Front 3

The heart is a:

Back 3

Closed cardiovascular system

Front 4

Where is the heart located?

Back 4

In the thorasic cavity, and sits on top of the diaphram, between the lungs (mediastinum)

Front 5

Tissue that covers the heart

Back 5

Pericardium

Front 6

Tissue that covers the lungs

Back 6

Pleura

Front 7

Pericardium and pleura is what membrane?

Back 7

Serous membrane

Front 8

T/F: The muscular wall (myocardium) of the right ventricle is thicker than the left atrium

Back 8

False

Front 9

Peritaneum is a serous membrane on the:

Back 9

intestines

Front 10

Left side:

Back 10

Systemic

Front 11

Right side:

Back 11

Pulmonary

Front 12

Space between=

Back 12

Cavity

Front 13

Outer layer:

Back 13

Parietal

Front 14

Inner layer:

Back 14

Visceral

Front 15

Veins do what?

Back 15

Carry blood to heart

Front 16

Function of atrium:

Back 16

Recieves blood

Front 17

Function of ventricle:

Back 17

Expells blood

Front 18

Function of artery

Back 18

Carry blood out of heart

Front 19

Superior parts come from:

Back 19

Upper extremities

Front 20

Inferior parts come from:

Back 20

Lower extremeties

Front 21

Left pulmonary valve brings

Back 21

oxygenated blood to left atrium

Front 22

The blood vessels on the heart aka:

Back 22

Coronary circulation

Front 23

Lump dump sound is the sound of:

Back 23

Contraction and relaxation

Front 24

Has bigger walls because there is a greater amount of forche needed to pump the blood to the rest of the body

Back 24

Left Ventricle

Front 25

Blood from A-V goes from:

Back 25

Atrium to ventricle

Front 26

3 cusps=

Back 26

tricuspid

Front 27

2 cups=

Back 27

bicuspid

Front 28

When something is striated, it means:

Back 28

it has light and dark bands

Front 29

The 2 kinds of circulations are:

Back 29

Chambers and valves

Front 30

Functional syncytium means:

Back 30

Contracting as a unit

Front 31

The heart is stimulated by nerves but is _____-_______

Back 31

Self-excitable

Front 32

Autorhythmic cells generate their own rhythm- for example:

Back 32

Pacemaker

Front 33

The heart has unstable resting potentials (which means its never really at rest) Called what?

Back 33

Pacemakers

Front 34

Pacemaker potentials->

Back 34

Action potentials

Front 35

What is the primary pacemaker of the heart

Back 35

Sinoatrial node

Front 36

The SA node generates impulses at:

Back 36

75 times/minute

Front 37

The rhythm produced by the SA node is called;

Back 37

The sinus rhythm

Front 38

Impulses pass from atria to ventricles via the:

Back 38

Atrioventricular bundle

Front 39

The AV bundle splits into two pathways in the interventricular septum, what are the two pathways?

Back 39

1. Bundle branches carry impulses to the heart
2. Purkinje fibers carry impulses to the heart apex and ventricular walls

Front 40

What is the p-wave in an ecg?

Back 40

Atrial depolarization

Front 41

Atrial depolarization is initiated by:

Back 41

the SA node

Front 42

Ventricular depolarization begins at the:

Back 42

Apex

Front 43

Ventricular depolarization causes the _________ complex and _____________ ________________ occurs

Back 43

QRS, Atrial repolarization

Front 44

T wave is:

Back 44

Ventricular repolarization

Front 45

The heart by itself is:

Back 45

Autorhythmic

Front 46

The heart is stimulated by what?

Back 46

the sympathetic cardioacceleratroy center

Front 47

Heart is inhibited by what?

Back 47

the Parasympathetic cardioinhibitory center

Front 48

All the events associated with blood flow through the heart

Back 48

Cardiac cycle

Front 49

Contraction of heart muscle

Back 49

Systole

Front 50

Relaxation of heart muscle

Back 50

Diastole

Front 51

The "lub" sound is when:

Back 51

The AV valves close when ventricles contract

Front 52

The "dup" sound is when:

Back 52

SL valves close when ventricles relax

Front 53

The "lup" sound is the ______ of BP

Back 53

systolic

Front 54

The "dup" sound is the ______ of BP

Back 54

Diastolic

Front 55

T/F: The blood fills the L and RV simultaneously

Back 55

TRUE MOFO

Front 56

Why do AV valves close?

Back 56

Because of pressure in the ventricles

Front 57

How much L of blood is in the heart?

Back 57

5

Front 58

The rate at which blood is expelled

Back 58

Cardiac output

Front 59

Cardiac Output = A x B (What is A and B)

Back 59

HR x SV

Front 60

Number of beats per minute

Back 60

Heart Rate

Front 61

Amount of blood expelled from ventricles per beat

Back 61

Stroke Volume

Front 62

SV= A-B (What is A and B?)

Back 62

End diastolic volume and end systolic volume

Front 63

Amount of blood collected in the ventricles during relaxation

Back 63

End diastolic Volume

Front 64

Amount of blood remaining in a ventricle after contraction

Back 64

End systolic Volume

Front 65

Amound ventricles are stretched by contained blood

Back 65

Preload

Front 66

Cardiac cell contractile force due to factors other than EDV

Back 66

Contractility

Front 67

Back pressure exerted by blood in the aorta and pulmonary trunk

Back 67

Afterload

Front 68

Resting heart rate=

Back 68

Vagal Tone

Front 69

Cranial nerve that inervates the heart

Back 69

Vagus

Front 70

Sympathetic NS activity increases _____

Back 70

HR

Front 71

Hormone, epinephrin, thyroxine and glucagon increases:

Back 71

HR

Front 72

Parasympathetic NS activity decreases:

Back 72

HR