Match the terms with their correct meanings.

-Record of the electricity flowing through the heart
A)electrocardiogram
B)deoxygenated blood
C)endothelium
D)murmur
E)myocardium
F)mitral valve
G)normal sinus rhythm
H)coronary arteries
I)pacemaker
J)pericardium

Question

Match the terms with their correct meanings.

-Record of the electricity flowing through the heart
A)electrocardiogram
B)deoxygenated blood
C)endothelium
D)murmur
E)myocardium
F)mitral valve
G)normal sinus rhythm
H)coronary arteries
I)pacemaker
J)pericardium

Quizplus · Accepted Answer

An electrocardiogram (ECG or EKG) is a recording of the electrical activity of the heart.

Answer: B 
 Deoxygenated blood is blood that has low levels of oxygen and high levels of carbon dioxide. It generally flows through the veins towards the heart.

Answer: C 
 The endothelium is a thin layer of cells that lines the interior surface of blood vessels and the heart.

Answer: D 
 A murmur is an abnormal sound heard during a heartbeat that is caused by turbulence of blood flow within the heart.

Answer: E 
 The myocardium is the muscular tissue of the heart that contracts to pump blood throughout the body.

Answer: F 
 The mitral valve is a heart valve that separates the left atrium from the left ventricle and prevents the backflow of blood.

Answer: G 
 Normal sinus rhythm is a regular electrical pattern of the heartbeat that occurs when the sinoatrial (SA) node functions properly.

Answer: H 
 The coronary arteries are blood vessels that supply oxygenated blood to the heart muscle.

Answer: I 
 The pacemaker is a specialized group of cells in the heart that generates electrical impulses to control the heartbeat.

Answer: J 
 The pericardium is a sac-like double-layered membrane that surrounds and protects the heart.

Match the Terms with Their Correct Meanings