Chapter 23: Blood Vessels

Question 1

arteries carry blood ___ heart

Answer 1

away from

Question 2

veins carry blood ___ heart

Answer 2

towards

Question 3

bridge arteries & veins; allow diffusion between blood & body tissues

Answer 3

capillaries

Question 4

disease characterized by changes in vessel wall primarily due to buildup of fatty deposits called plaque

Answer 4

atherosclerosis

Question 5

what are between arteries & veins?

Answer 5

capillaries

Question 6

function of capillaries

Answer 6

allow exchange of various molecules & even fluid between blood and tissue

Question 7

network of interconnected capillary vessels that lies between an arteriole & a venule

Answer 7

capillary bed

Question 8

site where “give and take” occurs between blood & your body’s cells

Answer 8

capillary exchange

Question 9

what items cross the walls of capillaries?

Answer 9

gases, nutrients, fluid, electrolytes, wastes

Question 10

sensory, can detect pressure/oxygen & carbon dioxide levels

Answer 10

carotid sinus

Question 11

connection of two vessels serving the same area

Answer 11

anastomosis

Question 12

narrow lumen diameter, thick wall, thickest tunic is tunica media

Answer 12

arteries

Question 13

wide lumen diameter, thin wall, thickest tunic is tunica externa

Answer 13

veins

Question 14

the cyclical process of precapillary sphincters opening when a body’s tissue needs nutrients & closing when a tissue needs are met

Answer 14

vasomotion