Circulation Test Prep

Question 1

Placenta

Answer 1

exchanges oxygen, nutrients, CO2 and wastes between the mother and the fetus (done by diffusion)

Question 2

Umbilical vein

Answer 2

carries oxygen, nutrients and rich blood from the placenta to the inferior cava of fetus

Question 3

Ductus venosus

Answer 3

the attachment point of the umbilical vein to the inferior vena cava that allows oxygenated blood from the placenta to travel to the fetus

Question 4

Foramen ovale

Answer 4

allows blood to bypass the non-functioning lungs

Question 5

Ductus arteriosus

Answer 5

allows most of the blood from the right ventricle to bypass the fetus’s fluid-filled non-functioning lungs.

Question 6

Umbilical arteries

Answer 6

carries deoxygenated blood to the placenta to be oxygenated and carries wastes to the placenta

Question 7

how much water is determined in human body weight?

Answer 7

70%

Question 8

red blood cells (erythrocytes)

Answer 8

transports oxygen formed bone marrow

Question 9

white blood cells (leukocytes)

Answer 9

fights infections

Question 10

If blood is allowed to sit in a test tube without clotting, it will divide into two main parts

Answer 10

55% plasma

45% formed elements

Question 11

systolic blood pressure

Answer 11

pressure when the ventricles are contracting

Question 12

diastolic blood pressure

Answer 12

pressure when the ventricles are relaxing