A&P Cardiovascular System

How many valves does  the heart have ? 

• 7
• 4
• 3 
• 2 

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

Blood enters the right atrium through 

• pulmonary veins
• vena cavaes
• pulmonary arteries
• aorta

Which vessels carry blood to the heart?

• Veins
• Arteries
• Capillaries

Which vessels carry blood away from the heart?

• Veins
• Arteries
• Capillaries

What prevents blood from flowing back into the atria when the ventricles contract?

• semilunar valves

• sinoatrial node

• atrioventricular node

• tricuspid and bicuspid valves

One of the body's largest blood vessels that transports blood from the body region below the diaphragm to the heart

• superior vena cava

• inferior vena cava

• pulmonary trunk

• pulmonary veins

When this chamber contracts, it pushes blood through the tricuspid valve

• right atria

• right ventricle

• left atria

• left ventricle

These are the smallest blood vessels with the thinnest walls in order to maximize diffusion of nutrients in and out of the interstitial fluid

• arteries

• veins

• capillaries

• aorta

Tags

NGSS.MS-LS2-3

Why is coronary circulation necessary?

• because blood needs to be pushed throughout the entire body

• because the heart itself needs nourishment

• because the scalp requires an exceptional amount of nourishment