Physiology Of Cardio.1

Front 1

substances that influence blood pressure:

Back 1

1. epinephrine
2. norepinephrine
3. antidiuretic hormone
4. arterial natriuretic hormone(ANP)
5. nitric oxide
6. nicotine
7. alcohol

Front 2

epinephrine

Back 2

1. secreted by the adrenal medulla
2. increase heart rate
3. increase heart muscle contractility
cause vasoconstriction of arteries and vein
4. as part of fight or flight

Front 3

norepinephrine

Back 3

1. secreted by the adrenal medulla
2. increase heart rate
3. increase heart muscle contractility
cause vasoconstriction of arteries and vein
4. as part of fight or flight

Front 4

antidiuretic hormone (ADH)

Back 4

1. secreted by the hypothalamus
2. increase blood pressure
3. stimulate kidneys to retain H2O
4. increases blood pressure by increasing blood volume

Front 5

arterial Natriuretic (ANP)

Back 5

1. secreted by the heart's atria
2. decreases blood pressure
3. causes vasodilation
4. stimulates kidneys to excrete H20
5. decreases blood pressure by decreasing blood volume

Front 6

Nitric Oxide

Back 6

1. secreted by endothelial cells
2. causes vasodilation

Front 7

Nicotine

Back 7

1. increases blood pressure
2. stimulates sympathetic neurons: -- increase vasoconstriction
3. stimulate adrenal medulla :-- increase secretion of epinephrine and norepinephrine

Front 8

Alcohol

Back 8

1. decreases blood pressure
2. inhibits vasomotor center(causes vasodilation)
3. inhibits release of ADH
4. this increases H20 exceretion and decreases blood volume