C03, P01 - V - Cardiovascular System

Question 1

Cardiovascular System

Answer 1

System composed of the heart, blood, and blood vessels.

Question 2

Mediastinum

Answer 2

Space in the chest between the lungs that contains all the internal organs of the chest except lungs.

Question 3

Sinoatrial (SA) Node

Answer 3

Specialized area of cardiac tissue, located in the right atrium of the heart, which initiates the electrical impulses that determine heart rate.

Question 4

Atrioventricular (AV) Node

Answer 4

Specialized cardiac muscle fibers, located in wall of right atrium, that receives heartbeat impulses from the SA and directs them to walls of the ventricles.

Question 5

Atrium

Answer 5

The superior chamber of the heart that receives blood from the veins and forces it into the ventricles.

Question 6

Ventricles

Answer 6

The inferior chamber of the heart that receives blood from its corresponding atrium and in turn forces blood into arteries.

Question 7

Stroke Volume

Answer 7

Amount of blood pumped out from each contraction of the heart.

Question 8

Cardiac Output

Answer 8

Heart Rate x Stroke Volume = Overall performance of heart.

Question 9

Arteries

Answer 9

Vessels that transport blood away from the heart.

Question 10

Capillaries

Answer 10

Smallest blood vessels and the site of exchange of chemicals and water between the blood and tissues.

Question 11

Veins

Answer 11

Vessels that transport blood from the capillaries toward the heart.

Question 12

Arterioles

Answer 12

Small terminal branches of an artery, which end in capillaries.

Question 13

Venules

Answer 13

Very small veins that connect capillaries to larger veins.