Cardiac Autoregulation/Barorecptors

Question 1

Vasodilatory metabolites in the heart

Answer 1

adenosine, NO

Question 2

Vasodilatory metabolites in the Brain

Answer 2

CO2

Question 3

Regulation of Kidney?

Answer 3

Myogenic and tubulofeedback

Question 4

Regulation of Lungs?

Answer 4

Hypoxic Vasoconstriction

Question 5

Regulation of Skeletal?

Answer 5

1. Neural (sympathetic tone)

2. Metabolites like Lactate

Question 6

Regulation of Skin?

Answer 6

Vasoconstriction/ sympathetic

Question 7

Hyperventilation in the brain helps decrease?

Answer 7

ICP through decreased cerebral flow

Question 8

Orthostatic Hypotension you should think of?

Answer 8

alpha 1

Question 9

With a baroreceptor, if there is hypotension what happens?

Answer 9

Hypotension=>decreased atrial pressure=>decreased stretch=>decreased parasymp baroreceptors firing=>increased efferent symp fibers firing

Question 10

With a baroreceptor, if there is Carotid massage what happens?

Answer 10

Carotid massage=>increased stretch=>increased afferent baroreceptors=>increased AV node refractory period=>Decreased HR

Question 11

Cushing’s Reaction?

Answer 11

HTN, Bradycardia and respiratory depression.