week 10- heart

Question 1

Purpose of right side of heart

Answer 1

pushes blood into lungs

Question 2

purpose of left side of heart

Answer 2

pushes blood to body

Question 3

Where will blood back up if right side fails?

Answer 3

back up in body, lead too peripheral edema

Question 4

Where will blood back up if left side fails?

Answer 4

blood backs up in the lungs

Question 5

autorhythmic

Answer 5

it does not
require nervous system stimulation to beat
because it generates its own electrical signals
(action potentials) to generate a heart beat

Question 6

“conduction system” of the heart?

Answer 6

coordinates the heartbeat
-composed of an internal pacemaker and nervelike
conduction pathways through myocardium

Question 7

How does the heart actually pump?

Answer 7

both Atriums contract and send blood to ventricles, then both ventricles send it through body

Question 8

Describe what is occurring in atria
and ventricles during the cardiac cycle.

Answer 8

RA- receives blood from S/I VC
LA-receives blood from pulmonary veins
RV-receives blood from RA through AV valve-semds to pulmonary trunk
LV-receives blood from LA through bicuspid valve - sends out aorta

Question 9

purpose of the heart valves

Answer 9

prevent backwards flow of blood

Question 10

Atrioventricular valve

Answer 10

tricuspid and bicuspid valves

Question 11

semilunar valve

Answer 11

-aortic and pulmonary valves
-Allow blood to exit ventricles and enter aorta
or pulmonary trunk

Question 12

cardiac tissue

Answer 12

only found in heart

Question 13

Coronary circulation

Answer 13

Provides cardiac muscle cells with reliable supplies
of oxygen and nutrients

Question 14

3 layers of heart wall

Answer 14

Epicardium
myocardium
endocardium

Question 15

Epicardium

Answer 15

Covers surface of heart—outermost layer

Question 16

Myocardium

Answer 16

responsible for the pumping action of the heart?

Question 17

endocardium

Answer 17

Covering inner surfaces of heart

Question 18

pericardium

Answer 18

fibrous sac that encloses/surrounds the
heart and the great vessels

Question 19

coronary arteries

Answer 19

2 main arteries branch extensively

Question 20

2 main
coronary arteries?

Answer 20

Right and left

Question 21

What happens if a coronary artery is partially vs completely blocked?

Answer 21

P-pain in chest
C-heart attack

Question 22

sinoatrial (SA) node

Answer 22

initiates each heartbeat and determines heart rate

Question 23

atrioventricular (AV) node

Answer 23

electrical gateway to the ventricles

Question 24

pulmonary circuit

Answer 24

carries blood from right side to lungs for gas
exchange and back to heart

Question 25

systemic circuit

Answer 25

blood that flows from heart to body back to heart)

Question 26

systolic pressure

Answer 26

ventricular contraction

Question 27

diastolic pressure

Answer 27

ventricular relaxation

Question 28

s1 and s2

Answer 28

1-lubb 2-dupp

Question 29

Blood pressure

Answer 29

-generated by the left ventricle -the force that blood exerts against a vessel wall

Question 30

Order of structures on path of a red blood cell

Answer 30

Superior/inferior Vena cavae right atrium tricuspid valve right ventricle pulmonary valve pulmonary trunk pulmonary arteries lungs pulmonary veins left atrium bicuspid valve left ventricle aortic valve aorta

Question 31

Right atrium

Answer 31

1

Question 32

Left atrium

Answer 32

2

Question 33

Right ventricle

Answer 33

3

Question 34

Left ventricle

Answer 34

4

Question 35

Interventriclular septum

Answer 35

5

Question 36

Aortic valve

Answer 36

6

Question 37

Pulmonary valve

Answer 37

7

Question 38

Bicuspid valve

Answer 38

8

Question 39

tricuspid valve

Answer 39

9

Question 40

Chordae tendinae

Answer 40

10

Question 41

papillary muscles

Answer 41

11

Question 42

inferior vena cava

Answer 42

12

Question 43

Superior vena cava

Answer 43

13

Question 44

Aortic arch

Answer 44

14

Question 45

Braciocephalic trunk

Answer 45

15

Question 46

left common carotid art

Answer 46

16

Question 47

left subclavian art

Answer 47

17

Question 48

Pulmonary artery

Answer 48

18

Question 49

Pulmonary vein

Answer 49

19

Question 50

Pulmonary trunk

Answer 50

20

Question 51

Left coronary artery

Answer 51

21

Question 52

Anterior interventrivular artery

Answer 52

22

Question 53

Right coronary artery

Answer 53

23

Question 54

Common cartoid art

Answer 54

24

Question 55

Internal carotid art

Answer 55

25

Question 56

external carotid art

Answer 56

26

Question 57

Vertebral artery

Answer 57

27

Question 58

Brachiocephalic vein

Answer 58

28

Question 59

internal jugular vein

Answer 59

29

Question 60

external jugular vein

Answer 60

30

Question 61

thoracic aorta

Answer 61

31

Question 62

abdominal aorta

Answer 62

32

Question 63

inferior vena cava torso

Answer 63

33