The veins

a. act as high-resistance passageways for blood flow from the tissues to the heart
b. can serve as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume
c. contain one-way valves that prevent backflow as blood moves toward the heart
d. have characteristics a and b
e. have characteristics b and c


E

Anatomy & Physiology

You might also like to view...

Regulation of peripheral resistance occurs most often in the

A. large arteries. B. medium-sized arteries. C. arterioles. D. capillaries. E. veins

Anatomy & Physiology

The ________ division of the ANS is most commonly associated with the preparation of the body for emergencies.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

The ________ of the sperm contains enzymes necessary for the penetration of the egg

A) acrosome B) nucleus C) tail D) midpiece

Anatomy & Physiology

Stem cells taken from a person to be used to treat a disease in that same person come

from A) existing cell populations or reprogrammed cells. B) the person or a blood relative. C) two different cell types. D) embryos or fetuses.

Anatomy & Physiology