Chapter 11 Flashcards Preview

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Flashcards in Chapter 11 Deck (36):
1

Apex

Directed toward left hip

2

Base

Broader posterosuperior aspect

3

Pericardium

A sac of serous membrane

4

Myocardium

Consists of thick bundles of cardiac muscle

5

Endocardium

Thin glistening sheet of endothelium

6

Atria

Two of the four cavities in the heart

7

Ventricles

The other two chambers in the heart

8

Interventricular septum

Septum that divides the heart heart longitudinally

9

Interatrial septum

Other septum that also divides the heart longitudinally

10

Superior venae cavae

Large venae cavae

11

Inferior venae cavae

Small venare cavae

12

Pulmonary trunk

Where blood from the superior and inferior venae cavae get pumped to

13

Pulmonary arteries

Carry blood to lungs

14

Pulmonary veins

A set of four veins that carry blood back to the heart from the lungs

15

Pulmonary circulation

Right side of the heart to the lungs, and back to the left side of the heart

16

Aorta

Blood that has returned to the left side of the heart gets pumped into here

17

Systemic circulation

From the left side of the heart through the tissue, and back to the right side of the heart

18

Atrioventricular valves (AV valves)

Located between atrial and ventricular chambers on each side of the heart

19

Bicuspid valve

Left AV valve

20

Tricuspid valve

Right AV valve

21

Chordae tendineae

Tendinous cords

22

Semilunar valves

Guards bases of large arteries

23

Pulmonary aortic semilunar valves

Each semilunar valve has three leaflets that fit together

24

Coronary arteries

Branch from the base of the aorta and encircle the heart

25

Cardiac veins

What drains the mycardium

26

Coronary sinus

Vessel on the backside of the heart

27

Angina pectoris

Crushing chest pain

28

Myocardial infraction

Heart attack

29

Sinoatrial node

Located in the right atrium

30

Atrioventricular node

Junction of the atria and ventricles

31

Purkinje fibers

Spread within the muscle of the ventricle walls

32

Pacemaker

Device to keep normal heartbeat

33

Ischemia

Lack of an adequate blood supply to the heart muscle

34

Fibrillation

Caused by ischemia

35

Systole

Heart contraction

36

Diastole

Heart relaxation