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Anatomy and Function of the Heart Quiz

#1

Which chamber of the heart receives oxygenated blood from the lungs?

Left atrium
Explanation

Receives oxygenated blood from lungs.

#2

Which vessel carries oxygenated blood away from the heart?

Aorta
Explanation

Carries oxygenated blood from heart.

#3

What is the approximate number of chambers in the human heart?

Four
Explanation

Four chambers.

#4

What is the term for the relaxation phase of the heart's pumping cycle?

Diastole
Explanation

Relaxation phase of pumping cycle.

#5

Which chamber of the heart pumps oxygenated blood to the systemic circulation?

Left ventricle
Explanation

Pumps oxygenated blood to systemic circulation.

#6

What is the purpose of the heart's valves?

To prevent backflow of blood
Explanation

Prevent backflow of blood.

#7

Which part of the heart is responsible for initiating the heartbeat?

Sinoatrial node
Explanation

Initiates heartbeat.

#8

Which layer of the heart wall is responsible for contracting and pumping blood?

Myocardium
Explanation

Contracts and pumps blood.

#9

Which of the following is NOT a major blood vessel connected to the heart?

Carotid artery
Explanation

Not a major blood vessel connected to heart.

#10

What is the term for the thin membrane that surrounds the heart and helps prevent overstretching?

Pericardium
Explanation

Surrounds heart, prevents overstretching.

#11

What condition is characterized by the buildup of plaque in the coronary arteries?

Atherosclerosis
Explanation

Buildup of plaque in arteries.

#12

What is the term for the volume of blood pumped out by each ventricle with each heartbeat?

Stroke volume
Explanation

Volume of blood pumped by each ventricle per heartbeat.

#13

What is the term for the network of specialized cardiac muscle cells responsible for conducting electrical impulses throughout the heart?

Purkinje fibers
Explanation

Specialized cells conducting electrical impulses.

#14

Which of the following conditions is characterized by an accumulation of fluid around the heart?

Pericarditis
Explanation

Accumulation of fluid around heart.

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