Body by Design Chapter 9

Question 1

In order for the body to stay alive, each of its cells must receive a continuous supply of ___.

Answer 1

nutrients and oxygen

Question 2

___ must be collected for removal from the body.

Answer 2

Carbon dioxide and other byproducts of cellular metabolism

Question 3

Blood follows ___ major pathways and __ minor pathways throughout the body.

Answer 3

two; two

Question 4

List the 3 types of blood vessels and briefly describe their functions.

Answer 4

a. Arteries are thick-walled, muscular blood vessels that carry blood away from the heart to the organs and tissues of the body.
b. Capillaries are the functional units of the circulatory system and bring blood within reach of every cell.
c. Veins are vessels that carry blood from the capillaries of the organs and tissues toward the heart.