Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Autonomic Nervous System Post Quiz

Total questions: 30

Worksheet time: 10mins

Name
Class
Date
1.

Which neurotransmitter is released from preganglionic sympathetic fibers?

a)

Acetylcholine

b)

Norepinephrine

c)

Epinephrine

d)

Dopamine

2.

The primary neurotransmitter of postganglionic sympathetic fibers is:

a)

Acetylcholine

b)

Norepinephrine

c)

Dopamine

d)

Serotonin

3.

Which receptor subtype mediates increased heart rate and contractility?

a)

α1

b)

β1

c)

β2

d)

M2

4.

Which muscarinic receptor subtype is located in the heart?

a)

M1

b)

M2

c)

M3

d)

M5

5.

The adrenal medulla secretes primarily:

a)

Acetylcholine

b)

Dopamine

c)

Epinephrine

d)

Norepinephrine

6.

The neurotransmitter removed by reuptake into nerve terminals is:

a)

Acetylcholine

b)

Norepinephrine

c)

Dopamine

d)

Serotonin

7.

Nicotinic receptors at the neuromuscular junction are classified as:

a)

Nn

b)

Nm

c)

M2

d)

M3

8.

Which enzyme degrades acetylcholine in the synaptic cleft?

a)

Monoamine oxidase

b)

Catechol-O-methyltransferase

c)

Acetylcholinesterase

d)

Dopamine hydroxylase

9.

Which adrenergic receptor subtype causes vasodilation in skeletal muscle?

a)

α1

b)

β1

c)

β2

d)

M3

10.

Parasympathetic preganglionic fibers originate from:

a)

Thoracolumbar region

b)

Craniosacral region

c)

Lumbar spinal cord only

d)

Cervical spinal cord

11.

A patient develops severe bradycardia after spinal anesthesia. Which drug is least effective?

a)

Atropine

b)

Ephedrine

c)

Glycopyrrolate

d)

Epinephrine

12.

Why does atropine occasionally cause paradoxical bradycardia at low doses?

a)

It blocks presynaptic muscarinic receptors

b)

It blocks postsynaptic β1 receptors

c)

It enhances vagal outflow

d)

It stimulates nicotinic ganglia

13.

In a patient with pheochromocytoma, which drug is contraindicated?

a)

Atropine

b)

Scopolamine

c)

Glycopyrrolate

d)

Phenoxybenzamine

14.

Which muscarinic antagonist does not cross the blood-brain barrier?

a)

Atropine

b)

Scopolamine

c)

Glycopyrrolate

d)

Diphenhydramine

15.

A patient develops central anticholinergic syndrome after scopolamine. Which drug is treatment of choice?

a)

Neostigmine

b)

Physostigmine

c)

Pyridostigmine

d)

Atropine

16.

Why is atropine contraindicated in narrow-angle glaucoma?

a)

It decreases aqueous humor formation

b)

It increases outflow via trabecular meshwork

c)

It causes pupillary dilation, narrowing iridocorneal angle

d)

It lowers intraocular pressure

17.

Which muscarinic antagonist produces the greatest CNS sedation and amnesia?

a)

Atropine

b)

Scopolamine

c)

Glycopyrrolate

d)

Ipratropium

18.

Which of the following explains atropine's ability to increase HR?

a)

Direct β1 stimulation

b)

Inhibition of vagal outflow

c)

Blockade of presynaptic muscarinic inhibition of NE release

d)

Both B and C

19.

In which patient population should atropine be avoided due to risk of hyperthermia?

a)

Elderly

b)

Febrile patients

c)

Trauma patients

d)

Patients with renal failure

20.

Why is glycopyrrolate favored during reversal of neuromuscular blockade?

a)

It crosses the BBB

b)

It avoids CNS side effects

c)

It causes intense tachycardia

d)

It increases seizure threshold

21.

A trauma patient with hemorrhagic shock cannot tolerate volatile anesthetics. Which drug can provide amnesia without cardiovascular depression?

a)

Atropine

b)

Glycopyrrolate

c)

Scopolamine

d)

Neostigmine

22.

A patient with atropine toxicity presents with delirium, mydriasis, and dry skin. What is the most specific antidote?

a)

Flumazenil

b)

Naloxone

c)

Physostigmine

d)

Neostigmine

23.

Which receptor subtype is most responsible for bronchoconstriction?

a)

M1

b)

M2

c)

M3

d)

β2

24.

Which sympathetic receptor subtype regulates lipolysis in adipose tissue?

a)

α1

b)

β1

c)

β2

d)

β3

25.

During administration of neostigmine for reversal, atropine is co-administered to prevent:

a)

Tachycardia

b)

Bronchodilation

c)

Muscarinic side effects (bradycardia, secretions)

d)

Hypertension

26.

Which muscarinic antagonist is most associated with postoperative delirium in elderly patients?

a)

Atropine

b)

Scopolamine

c)

Glycopyrrolate

d)

Tiotropium

27.

What explains paradoxical bronchospasm after atropine administration in some patients?

a)

β2 blockade

b)

Vagal stimulation

c)

Incomplete muscarinic blockade → unopposed M1 stimulation

d)

Release of histamine

28.

A patient with thyrotoxicosis develops tachycardia. Which antimuscarinic should be avoided?

a)

Atropine

b)

Scopolamine

c)

Glycopyrrolate

d)

Ipratropium

29.

Sweat glands are unique in that they are:

a)

Adrenergic, β2 mediated

b)

Adrenergic, α1 mediated

c)

Cholinergic but under sympathetic control

d)

Cholinergic under parasympathetic control

30.

Which best explains why physostigmine is effective in treating central anticholinergic syndrome, while neostigmine is not?

a)

Longer duration of action

b)

Tertiary amine → crosses BBB

c)

Stronger cholinesterase inhibition

d)

Greater muscarinic selectivity