Receptors

Question 1

What transmitters act on Alpha 1 receptors?

Answer 1

Norepinephrine
Epinephrine
Dopamine

Question 2

What transmitters act on Alpha 2 receptors?

Answer 2

Norepinephrine
Epinephrine

Question 3

What transmitters act on Beta 1 receptors?

Answer 3

Norepinephrine
Epinephrine
Dopamine

Question 4

What transmitters act on Beta 2 receptors?

Answer 4

Epinephrine

Question 5

What transmitters act on depamine receptors?

Answer 5

dopamine

Question 6

Where are the Alpha 1 receptors located?

Answer 6

Eyes
blood vessels
male sex organs
prostate capsule
bladder

Question 7

Where are the alpha 2 receptors located?

Answer 7

nerve terminals (always presynaptic)

Question 8

Where are beta 1 receptors located?

Answer 8

heart and kidney

Question 9

Where are beta 2 receptors located?

Answer 9

lung
uterus
arterioles of heart, lung, skeletal muscle
liver

Question 10

Where are the dopamine receptors located?

Answer 10

kidney

Question 11

What is the function of the Ocular A1?

Answer 11

dilate pupil

Question 12

What is the function of a1 receptors in the blood vessels?

Answer 12

vasoconstriction

Question 13

What function does the alpha 1 receptors have on male sex organs?

Answer 13

ejaculation

Question 14

What function does Alpha 1 receptors have on the smooth muscle of the bladder?

Answer 14

contraction

Question 15

What function dose alpha 2 have on the presynaptic nerve terminals?

Answer 15

regulates neurotransmitter release or prevents release when there is too much transmitter in the synaptic gap.

Question 16

What is the function of beta 1 receptors on the heart?

Answer 16

increases HR and force of contraction

Question 17

What is the function of beta 1 receptors on the kidney?

Answer 17

release renin to blood, which helps with vasoconstriction and increases BP.

Question 18

What is the function of beta 2 receptors on the lungs?

Answer 18

bronchial dilation

Question 19

What is the function of beta 2 receptors on the uterus?

Answer 19

relaxation of uterine smooth muscle

Question 21

What is the function of beta 2 receptors on the arterioles of the heart/lungs?

Answer 21

vasodilation

Question 22

What is the function of beta 2 receptors on the skeletal muscle?

Answer 22

contraction

Question 23

What is the function of beta 2 receptors on the liver and skeletal muscle?

Answer 23

glycogenolysis

Question 24

What is the function of dopamine receptors on the kidney?

Answer 24

dilates renal blood vessels to increase perfusion

Question 25

What are the transmitters of the Peripheral nervous system (PNS)?

Answer 25

ACh NE Epi

Question 26

What are the 3 cholinergic receptor subtypes?

Answer 26

Nicotinic M Nicotinic N Muscarinic

Question 27

What transmitter can act on all three cholinergic receptors?

Answer 27

Acetylcholine

Question 28

What is the location of the Cholinergic receptor Nicotinic N?

Answer 28

cell bodies of post-ganglionic neurons in the SNS and PSNS

Question 29

What is the location of the Cholinergic receptor Nicotinic M?

Answer 29

skeletal muscle

Question 30

What is the location of the Cholinergic receptor Muscarinic?

Answer 30

all organs regulated by the PSNS and sweat glands

Question 31

What is the function of Nicotinic N on the cell bodies of post-ganglionic neurons in SNS & PSNS?

Answer 31

promotes ganglionic transmission in all ganglia of SNS and PSNS

Question 32

What is the function of Nicotinic N on the adrenal medulla?

Answer 32

it promotes the release of Epi from the adrenal medulla

Question 33

What function does Nicotinic M have on the skeletal muscle?

Answer 33

contraction of the skeletal muscle

Question 34

What is the function of the muscarinic receptors on all organs of the PSNS and sweat glands?

Answer 34

elicits a response from the organ involved ex. decreases HR, contract ciliary eye muscle, urination, contraction of iris sphincter

Question 35

What is an agonist?

Answer 35

a drug that binds to a receptor and causes the same reaction as the transmitter that normally binds to that receptor.

Question 36

What is an antagonist?

Answer 36

A drug that binds to a receptor and prevents the reaction that would occur if the normal transmitter binds.