3.2

Question 1

systemic circulation

Answer 1

Circulation in which the blood from the heart flows to the rest of the body (not the lungs) and then back to the heart.

Question 2

vein

Answer 2

blood vessel that transports blood towards the heart.

Question 3

valve

Answer 3

type of membrane that only allows the blood to flow in one direction.

Question 4

circulatory system

Answer 4

all the blood vessels in the body.

Question 5

double circulatory system

Answer 5

circulatory system in which the blood passes through the heart twice in each complete circuit.

Question 6

portal vein

Answer 6

blood vessel that transports blood from the intestinal wall to the liver.

Question 7

capillary

Answer 7

blood vessel with a wall that is only one cell layer thick.

Question 8

circulation

Answer 8

the path that the blood takes through the body.

Question 9

artery

Answer 9

blood vessel that transports blood away from the heart.

Question 10

pulmonary circulation

Answer 10

circulation in which the blood from the heart flows to the lungs and then back to the heart.