Anatomy and Physiology Circulatory System

Fill in the blank: Blood flow is the volume of blood flowing through a blood vessel, organ, or the entire circulation system in a given _______.

• period.

• minute.

• hour.

• day.

Fill in the blank: Blood pressure is the force per unit area exerted on a vessel wall by the blood _______.

• inside it

• outside it

• around it

• near it

Resistance is the opposition to flow; the amount of friction the blood encounters as it passes through the blood _______.

• vessels

• cells

• tissues

• organs

Fill in the blank: Blood vessels are the dynamic structures that create pathways that constrict and relax in order to transport blood throughout the _______.

• body

• ocean

• atmosphere

• universe

Fill in the blank: Arteries are blood vessels that carry blood away from the _______.

• heart

• lungs

• brain

• stomach

Fill in the blank: Arterioles are smaller blood vessels that branch off of arteries and feed into capillary beds in our different organs and _______.

• tissues

• muscles

• bones

• nerves

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

• Capillaries

• Arteries

• Veins

• Venules

Capillary beds = _______.

• A network of capillaries.

• A single capillary.

• A group of veins.

• A collection of arteries.

Veins = _______.

• Blood vessels that carry blood toward the heart.

• Blood vessels that carry blood away from the heart.

• Blood vessels that carry oxygen-rich blood.

• Blood vessels that carry nutrients to cells.

. Smallest vein components that branch off of capillary beds and feed into bigger and bigger veins that lead back to the heart.

• Venules

• Arterioles

• Capillaries

• Veins