PNS

Question 1

What are the 2 major divisions of the Peripheral NS?

Answer 1

Somatic motor system

Autonomic motor system

Question 2

Which system involves motor movement?

Answer 2

Somatic

Question 3

Which system is self-ruling, meaning we don’t have to think about it for it to still work?

Answer 3

Autonomic motor

Question 4

What are the 2 parts to the autonomic motor system?

Answer 4

Parasympathetic

Sympathetic

Question 5

Which part of the autonomic motor system is the rest and digest/peace?

Answer 5

Parasympathetic

Question 6

What are the 7 characteristics of the parasympathetic nervous system?

Answer 6

Decreased HR
Increased Gastric secreation
Emptying bladder
Emptying bowel
Near vision
Pupil constriction
Bronchoconstriction

Question 7

What is the sympathetic system known for?

Answer 7

Fight or flight and stress responses

Question 8

What are the 5 characteristics of the flight or fight response?

Answer 8

• Increased HR and BP
• Shunting blood to skeletal muscles
• Bronchodilation
• Pupil dilation
• Increased glucose (brain) and fatty acids (muscles)

Question 9

What are the 3 cholinergic receptors of the PNS?

Answer 9

Nicotinic(n)
Nicotinic(m)
Muscarinic

Question 10

If a given drug activates nicotinic(n), what 2 things happen in patient response?

Answer 10

Stimulation of sympathetic and parasympathetic postganglionic nerves

Release of adrenalin from adrenal medulla

Question 11

If a given drug activates nicotinic(m), what will happen in patient response?

Answer 11

Contraction of skeletal muscle

Question 12

If a given drug activates muscarinic, what will the patient response be in the EYES?

Answer 12

Contraction of the ciliary muscle/focuses lens on near vision

Contraction of iris sphincter muscle/causes mitosis (decreased pupil diameter)

Question 13

If a given drug activates muscarinic, what will the patient response be in the HEART?

Answer 13

Decreased rate

Question 14

If a given drug activates muscarinic, what will the patient response be in the LUNGS?

Answer 14

Constriction of bronchi

Promotion of secretions

Question 15

If a given drug activates muscarinic, what will the patient response be in the BLADDER?

Answer 15

• Contraction of detrusor (increased bladder pressure)
• Relaxation of trigone spinchter (allow urine to leave the bladder)
• Coordination contraction of detrusor and relaxation of trigon sphincter causing voiding of the bladder

Question 16

If a given drug activates muscarinic, what will the patient response be in the GI?

Answer 16

• Salivation
• Increased gastric secretions
• Increased intestinal tone and motility

Question 17

If a given drug activates muscarinic, what will the patient response be in the SWEAT GLAND?

Answer 17

Generalized sweating

Question 18

If a given drug activates muscarinic, what will the patient response be in the SEX ORGANS?

Answer 18

Erection

Question 19

If a given drug activates muscarinic, what will the patient response be in the BLOOD VESSELS?

Answer 19

VASODILATION

Question 20

What are the 5 adrenergic receptors?

Answer 20

Alpha1, alpha2, beta1, beta2, dopamine

Question 21

If a given drug activates alpha1, what will the patient response be in the EYE?

Answer 21

Contraction of the radial muscle of the iris causing mydriasis (increase in pupil size)

Question 22

If a given drug activates alpha1, what will the patient response be in the ARTERIOLES OF SKIN, VISCERA, MUCOUS MEMBRANES?

Answer 22

Constriction

Question 23

If a given drug activates alpha1, what will the patient response be in the VEINS?

Answer 23

Constriction

Question 24

If a given drug activates alpha1, what will the patient response be in the SEX ORGANS (male)?

Answer 24

Ejaculation

Question 25

If a given drug activates alpha1, what will the patient response be in the PROSTATIC CAPSULE?

Answer 25

Contraction

Question 26

If a given drug activates alpha1, what will the patient response be in the BLADDER?

Answer 26

Contraction of trigone sphincter

Question 27

If a given drug activates alpha2, what will the patient response be in the PRESYNAPTIC NERVE TERMINALS?

Answer 27

Inhibition of transmitter release

Question 28

If a given drug activates beta1, what will the patient response be in the HEART?

Answer 28

• Increased rate
• Increased force of contraction
• Increase AV conduction velocity

Question 29

If a given drug activates beta1, what will the patient response be in the KIDNEY?

Answer 29

Release of renin

Question 30

If a given drug activates beta2, what will the patient response be in the ARTERIOLES OF THE HEART, LUNG, and SKELETAL MUSCLE?

Answer 30

Dilation

Question 31

If a given drug activates beta2, what will the patient response be in the BRONCHI?

Answer 31

Dilation

Question 32

If a given drug activates beta2, what will the patient response be in the UTERUS?

Answer 32

Relaxation

Question 33

If a given drug activates beta2, what will the patient response be in the LIVER?

Answer 33

Gycogenolysis

Question 34

If a given drug activates beta2, what will the patient response be in the SKELETAL MUSCLE?

Answer 34

Enhanced contraction

Glycogenolysis

Question 35

If a given drug activated dopamine, what will patient response be?

Answer 35

Dilation of kidney vasculature

Question 36

What receptors does epinephrine activate?

Answer 36

Alpha1
Alpha2
Beta1
Beta2

Question 37

What receptors does norepinephrine activate?

Answer 37

Alpha1
Alpha2
Beta1

Question 38

What receptors does dopamine activate?

Answer 38

Alpha1
Beta1
Dopamine

Question 39

Sympathetic receptors memory aid:
Beta1 receptor: \_\_\_\_
Beta2 receptor: \_\_\_\_
Alpha1 receptor: \_\_\_\_
Alpha2 receptor: \_\_\_\_

Answer 39

Beta1 receptor: Heart (we only have one heart)
Beta2 receptor: Lungs (we have 2 lungs)
Alpha1 receptor: Arteries (vasoconstriction)
Alpha2 receptor: not of concern at this point