Parts Of The Heart

Question 0

Base

Answer 0

Upper border of the heart, left atrium and part of the right atrium

Question 1

Apex

Answer 1

Lowest part of the heart

Formed by the inferolateral part of the left ventricle

Question 2

Endocardium

Answer 2

Endothelial tissue that lines interior of heart chamber and valves

Question 3

Epicardium

Answer 3

Serous layer of the pericardium, contains autonomic nerves and lymphatics.

Question 4

Myocardium

Answer 4

Thick contractile middle layer of muscle cells, forms the bulk of the heart wall

Question 5

Pericardium

Answer 5

Double walled connective tissue sack that surrounds the outside of the heart

Question 6

Aorta

Answer 6

Largest artery in the body

Question 7

Superior vena cava

Answer 7

Returns blood from the head, neck, and arms to the right atrium

Question 8

Inferior vena cava

Answer 8

Returns blood from the lower body and viscera to the right atrium

Question 9

Pulmonary arteries

Answer 9

Carry Deoxygenated blood from the right ventricle to the lungs

Question 10

Pulmonary veins

Answer 10

Carry oxygenated blood from the Lungs to the left atrium

Question 11

Coronary arteries

Answer 11

Carry oxygenated blood to the myocardium. Right and left coronary arteries arise from the ascending aorta, right after the aorta leaves the left ventricle.

Question 12

Purkinje fibers

Answer 12

Fibers that relay electrical impulses to the muscle cells of the heart

Question 13

Bundle of His

Answer 13

A group of fibers that initiates the AV node. Enters the interventricular septum, and splits into the right and left ventricles. Branches into Purkinje fibers