Basic Science

Question 1

What are the adrenergic receptor

Answer 1

Alpha 1
Alpha 2
Beta 1
Beta 2

Question 2

What is the function of alpha 1

Answer 2

Since alpha one is the smallest, so think of the constriction.
So the alpha 1 will constrict the vessel, pupillary dilator muscle and bladder neck.
Which result in
vasoconstriction
Mydriasis
Bladder outlet obstruction

Question 3

What is the function of alpha 2

Answer 3

Think of alpha 1 is constrict and the vessel is small, so the alpha 2 don’t like it and block the release of hormone and neurotransmitter.
Inhibit the released of noradrenaline and acetylcholine
Inhibit the release of insulin

Question 4

What is the function of beta 2

Answer 4

Beta 2 is the largest among the receptor.
So is the biggest, dilated. Due to relaxation of the smooth muscle. So it will have
Vasodilation
Bronchodilation
Relaxation of uterus smooth muscle

Question 5

What is the function of beta 1

Answer 5

You linked the beta 2 to beta 1
Since the beta 2 result in dilation of the vessel.
So the beta 1 will increase the blood flow to the big vessel by increased contraction of heart and increased HR.
Beta 1 also cause increased renin production in kidney. Renin will form angiotensin II which stimulate the aldosterone to reabsorb more water and sodium which increased the blood volume.