Quiz
Autonomic Nervous System
Create a free account to finish this quiz
Save your progress and see your final score.
Already have an account? Sign in
Questions in this quiz (44)
1The ANS regulates
- Acontractions of smooth muscles
- BContraction of cardiac muscles
- CAdipocyte metabolic activity
- DImmune cell activity
- ESkeletal muscle movement
2Dysautonomia is characterized by
- AAutonomy system failure
- BPure autonomic failure
- CPrimary autonomic failure
- DSecondary autonomic failure
3Primary autonomic failure is
- AAssociated with multi-system atrophy
- BSometimes with Parkinson’s
- CDegradation of Purkinje cells
- DAll of the above
4Pure autonomic failure is characterized by
- ANeuronal loss is confined to the pigmented brain stem nuclei, sympathetic ganglia, and spinal column where Levy bodies are found
- Bassociation with MSA (multi-system atrophy)
- CSecondary damage to autonomic fibers
- DNone of the above
5What is the role of the ANS?
- ASet, varies or optimizes the body condition/resources
- BPerformance at subconscious levels
- CEnables us to direct undivided conscious efforts to tasks we are facing
6The parasympathetic and sympathetic system act synergistically to increase sexual action. The ___ controls ejaculation while the ____ increases blood flow to sex organs.
- ASympathetic, parasympathetic
- BParasympathetic, sympathetic
7A muscle fiber in the ANS is duality innervated by parasympathetic and sympathetic fibers
- ATrue
- BFalse
8At the level of the motor pathway, the ANS forms an antagonistic pair. At the level of the skeletal muscle system, the antagonistic pairs are formed at the muscular level.
- ATrue
- BFalse
9At the motor level, skeletal muscles
- Ahave their fibers innervated by a single motor neuron
- Bhave one motor neuron that innervates multiple fibers
- Care innervated by only the SNS
10Skeletal muscle movement operates under the principle that
- Amuscles contract when its motor neuron fires
- Brelaxation is a passive process when motor neurons stop firing
- Cattaching pairs of muscles to opposite sides of the bone provide antagonistic action
11Smooth and cardiac muscles have antagonistic pairs of muscle.
- ATrue
- BFalse
12Smooth muscle
- Ais innervated dually by antagonistic pairs of SNS and PNS motor neurons
- Bin visceral organs can be innervated solely by the SNS (vascular smooth muscle and sweat glands)
- Cis innervated by a single motor neuron
13One smooth muscle is responsible for regulating the iris.
- ATrue
- BFalse
14The sphincter muscle is regulated by ____ while the dilator muscle is regulated by ____
- Aparasympathetic, sympathetic
- Bsympathetic, parasympathetic
15The SNS causes
- Aincreased heartbeat
- Bdecreased digestion and motility
- Cglucose release from liver
- Dadrenaline release
- Eincrease in urination
16The PNS causes
- Adecrease in heartbeat
- Bincrease in GI digestions and motility
- Cglucose storage in glycogen
- Dall of the above
17Skeletal motor neurons are in the spinal cord at all levels of the body below the face
- ATrue
- BFalse
18Skeletal motor neurons are in the brainstem to contract facial muscles
- ATrue
- BFalse
19Skeletal motor neurons
- Ausing ACh as a neurotransmitter
- Bdirectly innervate skeletal muscles by activating nicotonic receptors
- Chave preG neurons with axons that are moderate in diameter and moderately myelinated
- Dhave postG neurons with axons that are thin and unmyelinated
20Di-synaptic structure of the SNS and PNS are useful because
- Athey converge on the same shared target to bring out antagonistic responses
- BPreG neurons can branch out their axons and innervate many post-ganglionic neurons
- CPreG neurons can activate 100 to 200 PostG neurons
- Dit enables sympathy
21Both skeletal and SNS motor neuron pathways involve
- Amyelinated axons
- BACh as a neurotransmitter
- Cactivation of nicotonic ACh receptors
- DpreG and postG neurons
22The sympathetic motor pathways is as follows
- ApreG motor neuron > postG motor neuron > smooth muscle, cardiac muscle, or gland
- Bmotor neuron > skeletal muscle
- Cnone of the above
23Sympathy in the di-synaptic SNS motor pathway enables coordinated, cohesive responses from the internal organs in our body.
- ATrue
- BFalse
24Sympathetic, preG neurons are found in
- Athe lateral horn
- Bventral horn
- Call of the above
- Dnone of the above
25PostG neurons
- Aare found in paravertebral (on either side of the spinal cord) ganglia
- Bare found in prevertebral ganglia
- Cinnervate adrenal medulla
- Dinnervate smooth muscle surrounding hair
26SNS postG neurons provide sole innervation to vascular and pilorium smooth muscles, and sweat glands in the body wall and limbs
- ATrue
- BFalse
27Exceptions to the design of the sympathetic motor system include
- Athe sympathetic postG neurons projecting to sweat glands are cholinergic, acting on muscarinic cholinergic receptors (increasing sweating during intense physical activity)
- Bsympathetic preG neurons innervating adrenal medulla directly using ACh to act on nAChRs (monosynaptic action)
- Cmany sympathetic postG terminals containing norepinephrine also using ATP, NPY peptide, or VIP peptide as co-transmitters
28sympathetic postG terminals containing norepinephrine also use what as a co-transmitter?
- ANPY peptide
- BVPY peptide
- CATP
- Dall of the above
29What are common features between parasym and symp motor pathways?
- Adisynaptic
- Bmoderately myelinated preG axons and unmyelinated postG axons
- CpreG neurons use ACh as neurotransmitter that use mainly nicotinic receptor in postG cells
- Dall of the above
30Unlike symp motor pathway, parasym has
- Along preG axons
- Bshort postG axons
- CpostG uses ACh acting on muscarinic receptors in target tissue
- Dlocalized innervation of visceral organs so less divergent
- Eprojection to visceral organs only in body cavities and head but not to limbs or wall of trunk/abdomen
31Parasympathetic preG neurons are more discrete and local.
- ATrue
- BFalse
32PreG parasymp neurons originate in
- AT1-L2 intermediolateral column of spinal cord
- BBrain stem
- CS2-S4 spinal cord
33Parasympathetic system axons have preG fibers that are
- Ashorter than postG fiber
- Blonger than postG fiber
- Cthe same length as postG fiber
34A PA student is reviewing the ANS. She knows that the SNS arises from the ____ and is mainly involved in _____ function
- Asacral level of SC, fight and flight
- Bsacral level of SC, rest and digest
- Cthoracolumbar level of SC, fight and flight
- Dthoracolumbar level of SC, rest and digest
35A pharmaceutical company is developing a new drug to treat hypertension. Which type of action may this drug take
- ABlocking dopamine receptors
- BBlocking serotonin receptors
- CBlocking GABA receptors
- DBlocking norepinephrine receptors
- EBlocking cholinergic receptors
36A 29-year-old man got involved in a car accident and has damage to S1-S3 spinal segments. He is most likely to have
- AIncreases in heartbeat
- BDecreaases in heartbeat
- CIncreases in urinary retention
- DDecreases in urinary retention
37A 30-year-old man was exposed to botulinum toxin that blocked the release of acetylcholine form the axon terminal. Which of the synapses (A-D in the drawing) is impaired in its function?
- AA
- BB
- CC
- DD
38Another patient ingested by accident a drug that blocked adrenergic receptors. Which of the synapses is impaired in function?
- AA
- BB
- CC
- DD
39A soldier returned from a military operation, showing signs of posttraumatic stress disorder. He says that he starts to sweat and and have goosebumps at the sight of guns in the movies or Tv drama. This effect is most likely mediated by
- APostganglionic sympathetic cholinergic fibers
- BPostganglionic sympathetic adrenergic fibers
- CPostganglionic parasympathetic cholinergic fibers
- DPreganglionic sympathetic adrenergic fibers
40A 29-year-old woman is experiencing signs and symptoms of autonomic dysfunction. To determine whether this patient has an intact sympathetic innervation, a small skin sample is surgically removed and prepared and immunostaining. Antibodies to which of the following would be the best choice for this evaluation?
- AAspartate
- BDopamine
- CEpinephrine
- DNeuropeptide Y
- EAcetylcholine
41A PA student also know that the PNS arises from the _____ and is mainly involved in ____ function
- Abrainstem, fight and flight
- Bbrainstem, rest and digest
- Csacral level of the spinal cord, fight and flight
- Dsacral level of the spinal cord, rest and digest
42A 20-year-old began taking amphetamine for recreational use. This drug caused increases in blood pressure and heart rate. What would be the action of amphetamine?
- AIt decreases the reuptake of norepinephrine into the axon terminals
- BIt decreases the reuptake of acetylcholine into the axon terminals
- CIt decreases binding of norepinephrine to receptors
- DIt decreases binding of acetylcholine to nicotinic receptors
- EIt decreases binding of acetylcholine to muscarinic receptors
43When a tumor develops in the adrenal medulla (phenochromocytoma), it will lead to
- Aincreases in heart rate
- Bdecreases in pupil size
- Cincreases in urination
- Ddecreases in blood pressure
- Eincreases in GI motility
44A 30-year-old female cooked and ate mushrooms that she picked up in her backyard. Within 30 minutes, she experienced nausea, vomiting, diarrhea, urinary urgency, vasodilation, sweating, salivation. Those mushrooms must have contained chemicals that
- Astimulated the release of epinephrine from the adrenal medulla
- Bblocked nicotinic receptors on autonomic ganglia
- Ccaused excessive activation of muscarinic receptors
- Dblocked muscarinic receptors
Information
- Description
- physiology Quiz on Autonomic Nervous System, created by Pretoria Okafor on 13/06/2020.
- Author
- Pretoria Okafor
- Language
- English
- Views
- 92
- Tags
- Rating
- No ratings yet Rate this quiz