Cardiovascular System

Question 1

What’s the sac called that surrounds the heart

Answer 1

pericardium, to prevent friction

Question 2

What are the 3 layers of the heart

Answer 2

• Epicardium (outer layer)
• Myocardium (strong middle layer which is majority of wall)
• Endocardium (inner layer)

Question 3

What is Pulmonary Circulation

Answer 3

pulmonary artery, lungs, pulmonary vein

Question 4

What is Systemic Circulation

Answer 4

Aorta, Body tissues, vena cava

Question 5

Draw the Structure of the Cardiovascular system

Question 6

Describe the route of blood through the heart

Answer 6

1) Deoxygenated blood passes from the vena cava to the right atrium.
2) From here it travels through the tricuspid valve into the right ventricle.
3) Deoxygenated blood leaves the right side of the heart, passing through the semi-lunar valve into the pulmonary artery to travel to the lungs.
4) Oxygenated blood from the lungs passes through the pulmonary vein into the left atrium.
5) From here it travels through the bicuspid valve into the left ventricle.
6) Oxygenated blood leaves the left side of the heart, passing through the semi-lunar valves into the aorta to travel to the body.

Question 7

What are coronary arteries

Answer 7

Blood vessels which supply oxygenated blood to the heart muscle

Question 8

Where is the bicuspid valve found

Answer 8

left

Question 9

Where is the tricuspid valve found

Answer 9

right