Chapter 15: The Heart Flashcards Preview

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Flashcards in Chapter 15: The Heart Deck (50)
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Arteries and veins arise from this portion of the heart

Base

1

This ventricle pumps blood to the lungs

Right ventricle

2

Scientific name for a heart attack

Myocardial Infarction

3

The P wave of the electrocardiogram represents this event

Atrial depolarization

4

The first heart sound (Lubb) is caused by closure of these valves

AV

5

Name the parts of the pericardium

Fibrous, serous

6

The outermost layer of the pericardium

Fibrous

7

The layer of the pericardium that is adjacent to the heart muscle

Visceral

8

When the atria are in systole the ventricles are in_______?

Dystole

9

When the ventricles are in systole the AV valve is (open/closed)?

Closed

10

The main function of the heart valves

Prevent backflow of the blood

11

The T wave of the ECG indicates this event

Repolarization

12

Venous blood (without oxygen) returns to this CHAMBER

Right atrium

13

The coronary arteries take blood to this location

Heart

14

Hardening of the walls of arteries from smooth muscle proliferation and cholesterol deposit

Atherosclerosis

15

Condition caused by reduced blood flow to the myocardium

Myocardial ischemia

16

Irregular heart rhythm

Arrhythmia

17

Opening in the septum between the atria in a fetus

Foremen ovale

18

Narrowing of a valve opening by scar tissue

Stenosis

19

Different areas of the heart beating independently

Fibrillation

20

Narrowing of the coronary arteries reducing blood flow to the heart; has a number of causes and is the leading cause of death in the US

Coronary artery disease

21

The term "epicardium" refers to this structure

Outermost layer of the heart wall

22

Circulation of blood through the heart muscle is supplied by the ___ circulation

Coronary

23

Cardiac muscle is known as?

Myocardium

24

Chamber with the thickest wall of the heart

Left ventricle

25

The heartbeat originates in this mass of tissue

SA node

26

Structure who's job is to sequence the ventricular contractions with the atrial contractions

AV node

27

The electrical conducting system in the outer walls of the ventricles

Perkinde fibers

28

Location of the S-A node of the heart

Right atrium

29

The QRS spike represents this event

Ventricular depolarization