Heart: Intro

Question 1

Is the heart hollow?

Answer 1

Yes

Question 2

How big is your heart?

Answer 2

The size of a fist

Question 3

Where is the apex (tip) pointed to?

Answer 3

left hip

Question 4

What are the 3 layers of the heart? ( basic terminology )

Answer 4

Epicardium, Myocardium, and Endocardium

Question 5

3 layers of the heart? ( real terminology )

Answer 5

Fibrous pericardium, parietal pericardium, and serous pericardium

Question 6

Function of the fibrous pericardium?

Answer 6

Provides protection and anchors heart in place

Question 7

Function of serous pericardium?

Answer 7

produces lubricating fluid

Question 8

What is the thickest layer of the heart and why?

Answer 8

Myocardium because it has twisting bundles of cardiac muscle to provide contractions

Question 9

What are the 2 loops in the cardiovascular system?

Answer 9

Pulmonary circuit
Systemic circuit

Question 10

What is the pulmonary circuit?

Answer 10

Carries blood from the heart to the lungs and back, picks up O2 and releases CO2

Question 11

What is the systemic circuit?

Answer 11

Carries blood from the heart to the body tissues and back, releases O2 and picks up CO2

Question 12

What are the major blood vessels in the pulmonary circuit?

Answer 12

Pulmonary veins, and the pulmonary trunk

Question 13

What are the major blood vessels in the systemic circuit?

Answer 13

Venae cavae and the aorta