Cardiovascular System : The Heart

Question 1

Middle muscular layer of heart

Answer 1

Myocardium

Question 2

Inner layer of heart. Contains smooth endothelium

Answer 2

Endocardium

Question 3

Prefix meaning muscle

Answer 3

Myo-

Question 4

Lining of the heart

Answer 4

Endothelium

Question 5

Receiving chamber of heart. (Superior)

Answer 5

Atria

Question 6

Discharging chamber of heart. (Inferior)

Answer 6

Ventricles

Question 7

Functions as a pacemaker. Initiate heart contractions

Answer 7

Sinoatrial Node (SA Node)

Question 8

Electrical impulses

Answer 8

Action potentials

Question 9

Allows action potentials to pass from cell to cell, to contract in unison

Answer 9

Gap Junctions

Question 10

A pacemaker, excluding the SA Node

Answer 10

Ectopic Pacemaker

Question 11

Contractions of ventricles

Answer 11

Systole

Question 12

Relaxation of ventricles

Answer 12

Diastole

Question 13

A fast heart rate

Answer 13

Tachycardia

Question 14

A slow heart rate

Answer 14

Bradycardia

Question 15

Carries blood away from heart

Answer 15

Artery

Question 16

Carries blood towards the heart

Answer 16

Vein

Question 17

Pumps unoxygenated blood away from heart, then carries to lungs, then back to heart with oxygenated blood

Answer 17

Pulmonary circulation

Question 18

Outer layer of heart. Contain connective tissue

Answer 18

Epicardium

Question 19

Carries unoxygenated blood to lungs

Answer 19

Pulmonary arteries

Question 20

Receives oxygenated blood from lungs then drain to the heart

Answer 20

Pulmonary veins

Question 21

Large vein receiving unoxygenated blood coming into the right heart

Answer 21

Vena Cava

Question 22

Oxygenated blood from lungs pumps to all cell bodies via systemic arteries

Answer 22

Systemic Circulation

Question 23

Artery carrying blood to all other arteries excluding pulmonary artery

Answer 23

Aorta

Question 24

Blood flow encircling the heart

Answer 24

Coronary circulation

Question 25

Relaxation of ventricles

Answer 25

Diastole

Question 26

High blood pressure

Answer 26

Hypertension

Question 27

Sensory nerve ending in some large blood vessels

Answer 27

Baroreceptor

Question 28

An artery of the neck, sensitive to stretching of the arterial wall resulting a change in blood pressure

Answer 28

Common carotid artery

Question 29

Nervous system consisting the brain and spinal cord

Answer 29

CNS

Question 30

Abnormal sounds from the heart valves

Answer 30

Heart Murmur

Question 31

Plaque deposits on the inner lining of arterial walls

Answer 31

Atherosclerosis

Question 32

Severe pain in pectoris resulting from ischemia of heart muscle

Answer 32

Angina pectoris

Question 33

Loss of local blood due to obstruction

Answer 33

Ischemia

Question 34

Aka heart attack

Answer 34

Myocardial infarction

Question 35

Tissue death from lack of oxygen

Answer 35

Infarction

Question 36

Death of cell from lack of blood flow to tissue

Answer 36

Necrosis

Question 37

Aka cardiac arrest. Sudden stop of blood circulation due to heart failure to pump blood

Answer 37

Cardiopulmonary Arrest

Question 38

Cardiac rhythm disturbance. Most common: ventricular fibrillation

Answer 38

Arrhythmia

Question 39

Whole body inflammation from an infection. May cause poor organ function or insufficient blood flow if severe

Answer 39

Sepsis

Question 40

An emergency procedure to keep blood flowing to brain and other vital organs to restore a normal heart rhythm

Answer 40

Cardiopulmonary resuscitation (CPR)

Question 41

Position of body laid flat facing up

Answer 41

Supine position

Question 42

Aka chest center

Answer 42

Sternum

Question 43

Portable device to restore cardiac arrhythmias and tachycardia

Answer 43

Automated External Defibrillator (AED)

Question 44

Twitching of individual muscle fibers

Answer 44

Fibrillation

Question 45

Defibrillation is more successful within ________ of cardiac arrest

Answer 45

5 mins