Chapter 11 - Vocabulary

Question 1

What is the aorta?

Answer 1

Largest artery in body

Question 2

What is the apex of the heart?

Answer 2

Lower tip of heart

Question 3

What is an arteriole?

Answer 3

Small artery

Question 4

What is an artery?

Answer 4

Largest type of blood vessel; carries blood away from heart to all parts of body.

Question 5

What is atrioventricular bundle or bundle of His?

Answer 5

Specialized muscle fibres connecting the atria with the ventricles and transmitting electrical impulses between them

Question 6

What is atrioventricular node (AV node)?

Answer 6

Specialized tissue in the wall between the atria. Electrical impulses pass from pacemaker (SA node) through AV node and the bundle of His toward ventricles

Question 7

What is the atrium (sin. Atria)?

Answer 7

On of two upper chambers of the heart

Question 8

What is a capillary?

Answer 8

Smallest blood vessel. Materials pass to and from the bloodstream through thin capillary walls

Question 9

What is CO2?

Answer 9

Gas (waste) released by body cells, transported via veins to the heart, and then to the lungs for exhalation

Question 10

What are coronary arteries?

Answer 10

Blood vessels that branch from aorta and carry oxygenated blood to heart muscle

Question 11

What is diastole?

Answer 11

Relaxation phase of the heart

Question 12

What is EKG?

Answer 12

Record of the electricity flowing through the heart. Represented by waves of deflections called P, QRS, T

Question 13

What is endocardium?

Answer 13

Inner lining of the heart

Question 14

What is endothelium?

Answer 14

Innermost lining of blood vessels

Question 15

What is the mitral valve?

Answer 15

Valve between the left atrium and left ventricle; bicuspid valve

Question 16

What is the myocardium?

Answer 16

Muscular, middle layer of heart

Question 17

What is normal sinus rhythm?

Answer 17

Heart rhythm originating in SA node with rest rate of 60-100 beats per min

Question 18

What is oxygen?

Answer 18

Gas that enters the blood through the lungs and travels to the heart to be pumped via arteries to all body cells

Question 19

What is the pacemaker, or SA node?

Answer 19

Specialized nervous tissue in right atrium that begins the heartbeat.

Question 20

What is the pericardium?

Answer 20

Double-layered membrane surrounding the heart

Question 21

What is the pulmonary artery?

Answer 21

Artery carrying oxygen poor blood from heart to lungs

Question 22

What is pulmonary circulation?

Answer 22

Flow of blood from heart to lungs and back to heart.

Question 23

What is pulmonary valve?

Answer 23

Valve positioned between right ventricle and pulmonary artery

Question 24

What is the pulmonary vein?

Answer 24

One of two pairs of vessels carrying oxygenated blood from lungs to the left atrium of the heart

Question 25

What is a pulse?

Answer 25

Best of heart as felt through walls of arteries

Question 26

What is the septum (plural. Septa)?

Answer 26

Partition or wall dividing a cavity; such as between right and left atria (interatrial septum) and right and left ventricles (interventricular septum)

Question 27

What is sinoatrial node?

Answer 27

Pacemaker of heart

Question 28

What is sphygmomanometer?

Answer 28

Instrument to measure blood pressure

Question 29

What is systemic circulation?

Answer 29

Flow of blood from body tissue to the heart and then from heart back to body tissues

Question 30

What is systole?

Answer 30

Contraction phase of the heartbeat

Question 31

What is tricuspid valve?

Answer 31

Located between right atrium and right ventricle; has 3 cusps

Question 32

What is a valve?

Answer 32

Structure in veins or in heart that temporarily closes an opening so bold flows in one direction

Question 33

What is a vein?

Answer 33

Thin-walled vessel that carries blood from body tissues and lungs back to the heart. Veins contain valves to prevent backflow of blood

Question 34

What is the vena cava (plural. Venae cavae)?

Answer 34

Largest vein in body. Superior and inferior bens cava return blood to right atrium of the heart

Question 35

What is a ventricle?

Answer 35

One of two lower chambers of the heart

Question 36

What is a Venule?

Answer 36

A small vein

Question 37

AED

Answer 37

Automatic external defibrillator

Question 38

AV, A-V

Answer 38

Atrioventricular

Question 39

CABG

Answer 39

Coronary artery bypass grafting

Question 40

CAD

Answer 40

Coronary artery disease

Question 41

CHF

Answer 41

Congestive heart failure

Question 42

CPR

Answer 42

Cardiopulmonary resuscitation

Question 43

DVT

Answer 43

Deep vein thrombosis

Question 44

ECG (EKG)

Answer 44

Electrocardiography

Question 45

ECHO

Answer 45

Echocardiography

Question 46

HTN

Answer 46

Hypertension (high blood pressure)

Question 47

MI

Answer 47

Myocardial infarction

Question 48

PVC

Answer 48

Premature ventricular contraction

Question 49

SA, S-A node

Answer 49

Sinoatrial node

Question 50

SOB

Answer 50

Shortness of breath