Module 14: The Heart Flashcards Preview

Anatomy & Physiology MB > Module 14: The Heart > Flashcards

Flashcards in Module 14: The Heart Deck (10):
1

what region is the heart located in

mediastinum

2

Pericardium

protective save
outer layer called fibrous pericardium
Serous pericardium (parietal, visceral layer adheres to heart)
Pericardial cavity
Pericardial fluid (50ml)

3

3 layers of heart wall

epicardium (outer)
myocardium (middle)
endocardium (inner)

4

Heart chambers

right and left atrium (separated by interatrial septum)
left and right ventricle (separated by interventricular septum)

5

Septa

divides right and left chambers

6

Fibrous skeleton

separates upper and lower chambers

7

Heart valves

2 AV valves (tricuspid and mitral)
2 semilunar valves (pulmonary and aortic)

8

total pulmonary circulation takes

23 seconds

9

systole

contraction phase

10

diastole

relaxation phase