Blood vessels

Question 1

arteries

Answer 1

carry blood away from the heart
serve as rapid transient passageways for blood from the heart to organs and act as a pressure reservoir to provide force during relaxation

Question 2

veins

Answer 2

carry blood toward the heart
serve as a blood reservoir and passageways back to the heart

Question 3

ischemia

Answer 3

lack of blood flow

Question 4

injury hypothesis

Answer 4

injury to endothelial cells, intima exposed, cells grow but too much so they impede blood flow

Question 5

atherosclerosis

Answer 5

narrowing of a coronary artery
can be reversed

Question 6

arteriosclerosis

Answer 6

hardening of coronary artery
cannot be reversed once fibrous cap is on

Question 7

risk factors of coronary artery diseases

Answer 7

1. high BP
2. high blood chol (LDL)
3. smoking
4. stress
5. hereditary/genetics
6. inactivity
7. race
8. sex

Question 8

prevention of coronary artery diseases

Answer 8

aerobic exercise

Question 9

vasoconstriction

Answer 9

smooth muscle contracts

Question 10

vasodilation

Answer 10

smooth muscle relaxes

Question 11

sympathetic stimulation on peripheral arteries

Answer 11

vasoconstriction, decrease PO2 and increase PCO2