Heart Questions for Quiz

The force per unit area exerted on a vessel wall by the blood inside it

• blood flow

• blood pressure

• resistance

• blood vessels

Smaller blood vessels that connect arteries to capillaries

• capillaries

• arteries

• arterioles

• venules

carry blood away from heart

• capillaries

• arteries

• arterioles

• venules

carry blood toward from heart

• veins

• arteries

• arterioles

• venules

smaller blood vessels that connect capillaries to veins

• capillaries

• arteries

• arterioles

• venules

smallest blood vessels with the thinnest walls in order to maximize the exchange of materials between the blood and interstitial fluid

• capillaries

• arteries

• arterioles

• venules

Why are capillaries the smallest and thinnest blood vessles

• because they only need to carry small amounts of blood

• because they carry deoxygenated blood only

• because they need to exchange materials between blood and cells very quickly

• because they carry oxygenated blood only

The inner layer of the heart wall that actually contracts to pump blood

• pericardium

• mycardium

• endocardium

• epicardium

What causes the sound of your heartbeat?

• the valves of the heart opening

• the contraction of the ventricles

• the valves of the heart closing

• the contraction of the atria

systole

• when the heart contracts

• when the heart is beating too quickly

• when the heart relaxes

• when the heart is beating too slowly