BIOL G220 Unit 4 Lecture Exam Review C

Match it! Select the correct answer from the pull down...Good luck!

small rings of smooth muscle called ______ _______ encircle the metarterioles and arteriole side of capillary beds.

blood travels away from the heart in vessels called______, and towards the heart in vessels known as ___________

arteries are classified into three structural groups: in order from closest to the heart to farthest they are

a blood vessel connecting two other blood vessels, which creates a redundant pathway for blood flow is an

the tunica media consists primarily of

the circulatory system of the human body can be divided into two main branches, the _________ which goes through the lungs, and the _________ which passes through the rest of the body

arterioles have the thinnest _____ ______, and control blood flow to the _______

as arteries travel away from the heart their diameter ___, as veins get closer to the heart their diameter