Cardiovascular System

Question 1

Left and right atria

Answer 1

Separate the upper chambers of the heart. They receive blood from veins and they push blood to the ventricles which is why they have thin walls

Question 2

Left and right ventricles

Answer 2

Thick walked lower chambers. Push blood into arteries

Question 3

Septum

Answer 3

Thick wall that separates the atrium and ventricles

Question 4

Tricuspid/ mitral valves

Answer 4

One way valves in between the atria and ventricles

Question 5

Aortic valves

Answer 5

One way valves between the ventricles and the arteries

Question 6

Veins

Answer 6

Carry deoxygenated blood back to the heart

Question 7

Venules

Answer 7

A merged group of capillaries. Microscopic veins

Question 8

Capillaries

Answer 8

The smallest vessel in the body. Gasses and nutrients can diffuse through the thin walls. One blood cell thick

Question 9

Arterioles

Answer 9

A branch of an artery that gives rise to a capillary

Question 10

Arteries

Answer 10

Carries blood away from the heart. Always carries oxygenated blood, except for the pulmonary artery (which carries deoxygenated blood to the lungs)

Question 11

Pulmonary circulation

Answer 11

Heart -> lungs -> heart

Question 12

Systemic circulation

Answer 12

Heart -> body -> heart

Question 13

Sinoatrial nodes (SA nodes)

Answer 13

Cause atria to contract which forces blood to the ventricles

Question 14

Atrioventricular nodes (AV node)

Answer 14

Cause the ventricles to contract which forces blood to the lungs or around the body