Intro to the Heart

Question 1

What is the difference between pulmonary circuit and the systemic circuit?

Answer 1

• oxygen-poor blood to lung through pulmonary circuit
• oxygen-rich blood to rest or the body through systemic circuit

Question 2

Pulmonary circuit pathway

Answer 2

veins, right atrium, right ventricle, pulmonary arteries, lungs, pulmonary veins, left atrium

Question 3

Systemic circuit pathway

Answer 3

left atrium, left ventricle, aorta, systemic arteries

Question 4

3 types of blood vessels

Answer 4

arteries, veins, capillaries

Question 5

Where do arteries carry blood to?

Answer 5

away from the heart

Question 6

Where do veins carry blood to?

Answer 6

to the heart

Question 7

What are capillaries

Answer 7

networks between arteries and veins

Question 8

Mediastinum definition

Answer 8

cavity between the lungs

Question 9

Pericardial sac definition

Answer 9

sac of collagen fibers surrounding the heart that keeps the heart stable

Question 10

Pericardium structure

Answer 10

2 layers: parietal and visceral pericardium

parietal: outer layer, forms inner layer of pericardial sac
visceral: inner layer of pericardium

Question 11

Pericardium function

Answer 11

protection of the heart, reduces friction

Question 12

What is pericardial fluid?

Answer 12

serous fluid located between the layers of the pericardium

Question 13

Pericardial fluid function

Answer 13

reduces friction during heart contraction