Chapter 18: The Blood Vessels

Question 1

which of the following arteries has the smallest diameter?

Answer 1

metarteriole

Question 2

which of the following connects vessels through vascular anastomoses?

Answer 2

collaterals

Question 3

which blood vessels handle the highest blood pressure

Answer 3

systemic arteries

Question 4

what two values are needed to calculate mean arterial pressure (MAP)?

Answer 4

diastolic pressure and systolic pressure

Question 5

which of the following stimuli is detected by a chemoreceptor?

Answer 5

decreased blood oxygen concentration

Question 6

what hormone is released to decrease blood pressure?

Answer 6

atrial natriuretic peptide (ANP)

Question 7

by which method can large substances cross the endothelial cells and exit a capillary?

Answer 7

transcytosis

Question 8

which capillary would be least likely to allow substances to enter or exit the blood due to tight junctions that join the endothelial cells?

Answer 8

continuous capillaries

Question 9

which pressure is created by the presence of large proteins in the blood, such as albumin

Answer 9

colloid osmotic pressure

Question 10

which of the following is NOT an artery that branches off the aortic arch?

Answer 10

right subclavian artery

Question 11

which artery supplies the small intestine with blood?

Answer 11

superior mesenteric artery

Question 12

into which vein does blood in the external jugular vein drain

Answer 12

subclavian vein

Question 13

determine which fluid movement when hydrostatic pressure exceeds colloid osmotic pressure at the arteriolar end of the capillary

Answer 13

water is pushed out of the capillary by filtration

Question 14

damage to the external iliac artery will affect delivery of blood to the _____ ____

Answer 14

lower limb

Question 15

determine the mean arterial pressure (MAP) given a systolic pressure of 130 mmHg and diastolic pressure of 70 mmHg.

Answer 15

90 mmHg