Cardiovascular System Vocab

Question 1

Largest artery in the body

Answer 1

Aorta

Question 2

Lower tip of the heart

Answer 2

Apex of the heart

Question 3

Small artery

Answer 3

Arteriole

Question 4

Specialized muscle fibers connecting the artia with the ventricles and transmitting electrical impulses between them

Answer 4

Atrioventricular bundle
bundle of His (hiss)

Question 5

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

Answer 5

Artery

Question 6

Specialized tissue in the wall between the artia. Electrical impluses pass from the SA node to here

Answer 6

Atrioventricular node (AV node)

Question 7

One of two upper chambers of the heart

Answer 7

Atrium

Question 8

Smallest type of blood vessel. Materials pass to and from the bloodstream through these walls

Answer 8

Capillary

Question 9

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

Answer 9

Carbon dioxide (Co2)

Question 10

Two common arteries located on each side of the neck branch from the aorta and provide blood to the head, neck, and brain.

Answer 10

Carotid Arteries;
the word carotid means stupor because pressure on these arteries causes unconsiousness

Question 11

Blood vessels that branch from the aorta and carry oxygen-rich blood to the heart muscle

Answer 11

Coronary Arteries

Question 12

Deoxygenated Blood

Answer 12

Blood that is oxygen-poor

Question 13

Diastole

Answer 13

Relaxed phase of the heartbeat.
diastole = dilation

Question 14

Electrocardiogram

Answer 14

Record of electrical activity of the heart. The electricity is represented by waves of deflection called
P, QRS or T

Question 15

Endocardium

Answer 15

Inner linning of the heart

Question 16

Endothelium

Answer 16

The innermost linning of blood vessels.

Question 17

Valve Between the left atrium and the left ventricle; BICUSPID valve

Answer 17

Mitral valve

Question 17

Heart Rhythm originating in the sinoatrial node with a rate in patients at rest of 60 to 100 heats per minute

Answer 17

Normal Sinus rhythm

Question 18

Abnormal swishing sound caused by improper closure of heart valve.

Answer 18

murmur

Question 19

Muscular middle layer of the heart.

Answer 19

Myocardium

Question 20

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

Answer 20

Oxygen

Question 21

Specialized nervous tissue in the right atrium that begins the heartbeat. An artificial cardiac pacemaker is an electronic apparatus implanted in the chest to stimulate heart muscle that is weak and not functioning.

Answer 21

Pacemaker (sinoatrial node)

Question 22

Double-layered membrane surrounding the heart

Answer 22

Pericardium

Question 23

Artery carring oxygen-poor blood from heart to lungs.

Answer 23

Pulmonary Artery

Question 24

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

Answer 24

Pulmonary Circulation

Question 25

Valve positioned between the right ventricle and the pulmonary artery.

Answer 25

Pulmonary Valve.

Question 26

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

Answer 26

Pulmonary vein

Question 27

Beat of the heart

Answer 27

pulse

Question 28

Partition or wall dividing a cavity; such as between left and right Atria or ventricles

Answer 28

Septum (septa)

Question 29

Pacemaker of heart

Answer 29

Sinoatrial node (SA node)

Question 30

Sphygm/o/man/o/meter

Answer 30

Instrument to measure blood pressure

Question 31

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

Answer 31

Systemic circulation

Question 32

Contraction phase of the heart beat

Answer 32

systole

Question 33

Located between the right atrium and right ventricle

Answer 33

Tricuspid valve; It has (tri-) leaflets or cusps.

Question 34

A structure in viens that temporarily closes an opening so that blood flows in only one direction

Answer 34

Valve

Question 35

Thin- walled vessel that carries blood from body tissues and lungs back to heart.

Answer 35

Veins ; Veins contain valves to prevent back flow of blood

Question 36

Largest Vein in the body

Answer 36

Vena Cava ; The superior and inferior venae cava return blood to the right atrium of heart

Question 37

Ventricle

Answer 37

One of two lower chambers of the heart

Question 38

Venule

Answer 38

Small Vein

Question 39

Extremely rapid and irregular contractions of the heart muscle are called

Answer 39

Fibrillations

Question 40

Palpitations

Answer 40

Uncomfortable sensations in the chest related to cardiac arrhythmias that make you aware of your heartbeat