Section 2, Exam 1

Question 1

All ANS preganglionic neuron’s nerve endings secrete _____ which binds to _________ receptors on the postsynaptic membrane.

Answer 1

ACh; nicotinic

Question 2

Most sympathetic postganglionic neuron’s nerve endings secrete ____ which binds to ______ receptors on the effector organ.

Answer 2

NE; Adrenergic

Question 3

Sympathetic postganglionic neurons that innervate sweat (eccrine) and skeletal muscle secrete ______ which binds to ________ receptors on the postsynaptic membrane.

Answer 3

ACh; muscarinic

Question 4

True or False;

Nicotinic receptors send ESPS signals.

Answer 4

True

Question 5

True or False;

Muscarinic receptors send ESPS

Answer 5

Kinda True;

They send both ESPS and ISPS signals

Question 6

All parasympathetic neuron’s nerve endings secrete ______ which binds to _____ receptors on the effector organ.

Answer 6

ACh; muscarinic

Question 7

Name the two cholinergic receptors

Answer 7

1. Nicotinic

2. Muscarinic

Question 8

What two neurotransmitters does the adrenal medulla secrete?

Answer 8

1. Epinephrine (20%)

2. Norepinephrine (80%)

Question 9

What receptor(s) does NE bind to?

Answer 9

Alpha only

Question 10

What receptors are in voluntary skeletal muscle?

Answer 10

Nicotinic

Question 11

What receptor(s) does epinephrine bind to?

Answer 11

Alpha and Beta

Question 12

What does atropine do?

Answer 12

Cholinergic blocker (muscarinic); prevents ACh from binding to postsynaptic receptors; i.e. dilates the eye

Question 13

Name the sympathetic and parasympathetic action of the pupil

Answer 13

Sympathetic - Dilates (alpha)

Parasympathetic - Constricts

Question 14

Name the sympathetic and parasympathetic action of the eye lens

Answer 14

Sympathetic - none

Parasympathetic - constrict ciliary muscle (close vision)

Question 15

Name the sympathetic and parasympathetic action of the salivary glands

Answer 15

Sympathetic - cotton mouth

Parasympathetic - copious release of saliva

Question 16

Name the sympathetic and parasympathetic action of the heart

Answer 16

Sympathetic - Increase in HR, vigor, and metabolism (beta)

Parasympathetic - Decrease in HR and metabolism

Question 17

Name the sympathetic and parasympathetic action of the lungs (bronchi, pulmonary vessels, mucous glands)

Answer 17

Sympathetic - dilates; mild constriction; inhibits

Parasympathetic - weak constriction; none; increases

Question 18

Name the sympathetic and parasympathetic action of the adrenal medulla

Answer 18

Sympathetic - secretion of NE and epinephrine

Parasympathetic - no connection

Question 19

Name the sympathetic and parasympathetic action of the GI tract

Answer 19

Sympathetic - decrease digestion (alpha)

Parasympathetic - increase digestion

Question 20

Name the sympathetic and parasympathetic action of the pelvic visceral (distal colon, rectum)

Answer 20

Sympathetic - decrease peristalsis and tone (alpha)

Parasympathetic - increase peristalsis and tone for evacuation

Question 21

Name the sympathetic and parasympathetic action of the sweat eccrine glands (sweat)

Answer 21

Sympathetic - copious secretion

Parasympathetic - no connection

Question 22

Name the sympathetic and parasympathetic action of the sweat apocrine glands

Answer 22

Sympathetic - thick, smelly secretion

Parasympathetic - no connection

Question 23

Name the sympathetic and parasympathetic action of the blood vessels

Answer 23

Sympathetic - mostly constricts, vasodilator in skeletal muscle

Parasympathetic - none except in external genitalia (erection

Question 24

Name the sympathetic and parasympathetic action of the hair follicles

Answer 24

Sympathetic - hair stands up

Parasympathetic - no connection

Question 25

Name the sympathetic and parasympathetic action on metabolism

Answer 25

Sympathetic - increases

Parasympathetic - no influence

Question 26

Name the sympathetic and parasympathetic action of the bladder

Answer 26

Sympathetic - questionable, may fill

Parasympathetic - stimulates emptying of bladder

Question 27

Name the sympathetic and parasympathetic action of the sexual function

Answer 27

Sympathetic - ejaculation

Parasympathetic - erection of clitoris and penis

Question 28

Name two groups of adrenergic receptors

Answer 28

1. Alpha

2. Beta

Question 29

This adrenergic receptor is found in effector organs like the eye, causes vasoconstriction, decreases motility and tone of intestines, and causes spleen contraction

Answer 29

Alpha

Question 30

This adrenergic receptor is found in effector organs like SA node of the heart increasing HR, contractile force, and dilates coronary vessels

Answer 30

Beta