Autonomic Nervous System

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 Autonomic Nervous System
A test questions about ANS (autonomic nervous system).

  
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  • 1. 
    Which of the below answers is NOT correct concerning a preganglionic neuron
    • A. 

      Form the first part of an autonomic motor pathway

    • B. 

      Form a gap junction with the postganglionic neuron

    • C. 

      Have its cell body in the brain or spinal cord

    • D. 

      Have its axon exiting the CNS with a cranial or spinal nerve

    • E. 

      Have myelinated axons


  • 2. 
    A postganglionic neuron
    • A. 

      Has myelinated axons

    • B. 

      Releases neurotransmitter at the effector cell

    • C. 

      Is the first part of an autonomic motor pathway

    • D. 

      Has its cell body in the brain or spinal cord

    • E. 

      Has its axons exiting the CNS through cranial nerves


  • 3. 
    These normally have the shortest preganglionic axons.
    • A. 

      Gray ramus

    • B. 

      White ramus

    • C. 

      Autonomic plexuses

    • D. 

      Sympathetic ganglia

    • E. 

      Parasympathetic ganglia


  • 4. 
    Which of the below does NOT describe the Sympathetic division?
    • A. 

      Ganglion in the head

    • B. 

      Short preganglionic neurons

    • C. 

      Thoracolumbar output

    • D. 

      Synapse with blood vessels

    • E. 

      Stimulate sweat glands


  • 5. 
    Which of the below does NOT describe the Sympathetic division?
    • A. 

      Does not stimulate sweat glands

    • B. 

      Short pregranglionic neurons

    • C. 

      Synapses with blood vessels

    • D. 

      Ganglion near vertebrae

    • E. 

      Cranialsacral output


  • 6. 
    Which of the below terms describes an effector innervated by both the Paraympathetic and Sympathetic divisions?
    • A. 

      Preganglionic stimulation

    • B. 

      Multi-autonomic output

    • C. 

      Reciprocal innervation

    • D. 

      Dual innervation

    • E. 

      Biganglion excitation


  • 7. 
    Which of the following is not considered a part of the prevertebral ganglia?
    • A. 

      Celiac ganglion

    • B. 

      Terminal ganglion

    • C. 

      Superior mesenteric ganglion

    • D. 

      Inferior mesenteric ganglion

    • E. 

      All are prevertebral ganglia


  • 8. 
    Which is not an example of parasympathetic terminal ganglia?
    • A. 

      Otic ganglion

    • B. 

      All are terminal ganglion

    • C. 

      Ciliary ganglion

    • D. 

      Pterygopalatine ganglion

    • E. 

      Submandibular ganglion


  • 9. 
    This is the largest autonomic plexus.
    • A. 

      Hypogastric plexus

    • B. 

      Renal plexus

    • C. 

      Superior mesenteric plexus

    • D. 

      Cardiac plexus

    • E. 

      Celiac plexus


  • 10. 
    This plexus is located anterior to the fifth lumbar vertebra and supplies pelvic viscera.
    • A. 

      Hypogastric plexus

    • B. 

      Superior mesenteric plexus

    • C. 

      Inferior mesenteric plexus

    • D. 

      Renal plexus

    • E. 

      Celiac plexus


  • 11. 
    These are structures containing sympathetic preganglionic axons that connect the anterior ramus of the spinal nerve with the ganglia of the sympathetic trunk.
    • A. 

      Greater splanchnic nerve

    • B. 

      Inferior cervical ganglion

    • C. 

      White rami communicantes

    • D. 

      Gray rami communicantes

    • E. 

      Lumbar splanchnic nerve


  • 12. 
    These send postganglionic axons to the parotid salivary gland.
    • A. 

      Ciliary ganglia

    • B. 

      Pterygopalatine ganglia

    • C. 

      Submandibular ganglia

    • D. 

      Otic ganglia

    • E. 

      None of the above


  • 13. 
    Acetylcholine is released by _____________postganglionic neurons and is removed______than Norepinephrine.
    • A. 

      Sympathetic and slower

    • B. 

      Parasympathetic and faster

    • C. 

      Sympathetic and faster

    • D. 

      Parasympathetic and slower


  • 14. 
    Autonomic tone is regulated by
    • A. 

      Hypothalamus

    • B. 

      Cerebellum

    • C. 

      Medulla oblongata

    • D. 

      Vermis

    • E. 

      Cerebrum


  • 15. 

    • A. 

      Serotonin

    • B. 

      Epinephrine

    • C. 

      Acetylcholine

    • D. 

      Dopamine

    • E. 

      Norepinephrine


  • 16. 

    Which ganglion supplies the stomach with postganglionic neurons?
    • A. 

      Inferior cervical ganglion

    • B. 

      Middle cervical ganglion

    • C. 

      Celiac ganglion

    • D. 

      Inferior mesenteric ganglion

    • E. 

      Prevertebral ganglion


  • 17. 

    Which nerve supplies the inferior mesenteric ganglion with preganglionic neurons?
    • A. 

      Cardiac plexus

    • B. 

      Pulmonary plexus

    • C. 

      Lumbar splanchnic nerve

    • D. 

      Lowest splanchnic nerve

    • E. 

      Greater splanchnic nerve


  • 18. 

    The celiac ganglion supplies preganglionic neurons to
    • A. 

      Lowest splanchnic nerve

    • B. 

      Superior mesenteric ganglion

    • C. 

      Lumbar splanchnic nerve

    • D. 

      Lesser splanchnic nerve

    • E. 

      Inferior mesenteric ganglion


  • 19. 

    Postganglionic neurons from the otic ganglion supply
    • A. 

      Head

    • B. 

      Heart

    • C. 

      Liver

    • D. 

      Lungs

    • E. 

      Ureter


  • 20. 

    Preganglionic neurons from which nerve supply the genitals?
    • A. 

      Cranial nerve III

    • B. 

      Cranial nerve VII

    • C. 

      Cranial nerve IX

    • D. 

      Cranial nerve X

    • E. 

      Pelvic splanchnic nerve


  • 21. 

    Postganglionic neurons from what ganglion supply the lacrimal gland?
    • A. 

      Submandibular ganglion

    • B. 

      Ciliary ganglion

    • C. 

      Pelvic splanchnic nerve

    • D. 

      Otic ganglion

    • E. 

      Pterygopalatine ganglion


  • 22. 

    Where is the right vagus nerve in the figure?
    • A. 

      C

    • B. 

      A

    • C. 

      B

    • D. 

      H

    • E. 

      K


  • 23. 

    Where is the lesser splanchnic nerve in the figure?
    • A. 

      D

    • B. 

      L

    • C. 

      K

    • D. 

      C

    • E. 

      E


  • 24. 

    Where is the right sympathetic trunk ganglion?
    • A. 

      G

    • B. 

      E

    • C. 

      F

    • D. 

      M

    • E. 

      N


  • 25. 

    Where is the cardiac plexus in the figure?
    • A. 

      H

    • B. 

      I

    • C. 

      A

    • D. 

      J

    • E. 

      B


  • 26. 

    Where is the hypogastric plexus in the figure?
    • A. 

      N

    • B. 

      J

    • C. 

      K

    • D. 

      D

    • E. 

      F


  • 27. 

    This figure illustrates the
    • A. 

      Somatic motor nervous system.

    • B. 

      Somatic sensory nervous system.

    • C. 

      Parasympathetic division.

    • D. 

      Sympathetic division.

    • E. 

      C and D are correct


  • 28. 

    Stimulation of the indicated axon will
    • A. 

      Constrict the pupil

    • B. 

      Dilate the pupil

    • C. 

      Decrease salivation.

    • D. 

      A and C are correct.

    • E. 

      A, B and C are correct.


  • 29. 

    The indicated structure is a
    • A. 

      Somatic motor nerve

    • B. 

      Sympathetic nerve

    • C. 

      Parasympathetic nerve

    • D. 

      Somatic sensory nerve


  • 30. 
    The chromaffin cells
    • A. 

      Are found in the adrenal cortex

    • B. 

      Are developmentally part of the same tissue as the sympathetic nervous system

    • C. 

      Secrete hormones that decrease heart rate

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 31. 

    Acetylcholine will be found in
    • A. 

      Neuromuscular junctions

    • B. 

      Sympathetic ganglia

    • C. 

      Parasympathetic ganglia

    • D. 

      B and C are correct

    • E. 

      A, B and C are correct


  • 32. 

    Acetylcholine binds to
    • A. 

      Nicotinic receptors

    • B. 

      Muscarinic receptors

    • C. 

      Alpha receptors

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 33. 

    Release of acetylcholine will
    • A. 

      Stimulate the heart

    • B. 

      Dilate bronchioles

    • C. 

      Increase digestion

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 34. 
    Direct application of acetylcholine to the heart
    • A. 

      Will increase heart rate

    • B. 

      Will decrease heart rate

    • C. 

      Will have no effect on heart rate


  • 35. 
    Activation of the sympathetic nervous system will cause
    • A. 

      Dilation of the pupils

    • B. 

      Constriction of the pupils

    • C. 

      Increased urine production and “wetting the pants”

    • D. 

      A and B are correct

    • E. 

      A,B and C are correct


  • 36. 
    Alpha and beta adrenergic receptors
    • A. 

      Are sensitive to epinephrine

    • B. 

      Have several subclasses

    • C. 

      Mediate response to the sympathetic nervous system

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 37. 
    Nicotinic receptors
    • A. 

      Are found in all autonomic ganglia

    • B. 

      Are found in sweat glands

    • C. 

      Increases digestion

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 38. 
    Stimulation of muscarinic receptors
    • A. 

      Can increase the activity of organs

    • B. 

      Can decrease the activity of organs

    • C. 

      Will decrease sweat production

    • D. 

      A and B are correct

    • E. 

      A, B and C are correct


  • 39. 
    Which of the following does not describe the autonomic nervous system?
    • A. 

      It is under involuntary control

    • B. 

      The effectors are primarily skeletal muscles

    • C. 

      The sympathetic division generally stimulates an organ

    • D. 

      The parasympathetic division decreases heart rate

    • E. 

      Preganglionic axons release acetylcholine


  • 40. 
    The sympathetic division of the ANS is called the thoracolumbar division because:
    • A. 

      Its preganglionic neurons'cell bodies of the spinal cord are located in the gray matter of the thoracic and lumbar segments

    • B. 

      The axons of the preganglionic neurons control thoracolumbar inflow

    • C. 

      It controls only organs and muscles in the thoracic and lumbar areas of the body

    • D. 

      Sensory stimulation is received via all thoracic and lumber nerve roots


  • 41. 
    Which organ is matched incorrectly with either its sympathetic or parasympathetic ganglion?
    • A. 

      Eye – ciliary ganglion

    • B. 

      Urinary bladder – inferior mesenteric ganglion

    • C. 

      Heart – inferior cervical ganglion

    • D. 

      Ear – otic ganglion

    • E. 

      Stomach – celiac ganglion


  • 42. 
    Which statement is false in reference to the autonomic ganglia?
    • A. 

      The sympathetic preganglionic fibers of the sympathetic chain are very short

    • B. 

      The sympathetic chain ganglia lie close to the vertebrae on each side

    • C. 

      The terminal ganglia are parasympathetic ganglia

    • D. 

      The terminal ganglia lie near the bellies of skeletal muscles

    • E. 

      The prevertebral ganglia lie close to the abdominal arteries


  • 43. 
    Cholinergic neurons are named after the neurotransmitters that they release,the catecholamines.
    • A. 

      True

    • B. 

      False


  • 44. 
    An agonist is:
    • A. 

      A substance that binds with a neurotransmitter to enhance its effects

    • B. 

      A substance that blocks a hormone from applying its effect

    • C. 

      A substance that prevents a receptor from receiving a hormone

    • D. 

      A substance that activates a receptor producing the same effect as a neurotransmitter


  • 45. 
    The definition of autonomic tone is:
    • A. 

      The balance between sympathetic and parasympathetic activity

    • B. 

      The canceling out effect of adrenergic and cholinergic responses to a stimulus

    • C. 

      The communication between the autonomic nervous system and the somatic nervous system

    • D. 

      The constant slight contraction seen in skeletal muscles


  • 46. 
    Which of the following effects does not occur during the fight-or-flight response?
    • A. 

      The airways increase in diameter

    • B. 

      Heart rate speeds up

    • C. 

      The pupils constrict

    • D. 

      Blood pressure increases

    • E. 

      Blood vessels to skeletal muscles dilate


  • 47. 
    Which of the following sympathetic responses is mismatched with its body part?
    • A. 

      Iris of eye – dilation of pupil

    • B. 

      Liver – increased glycogen synthesis

    • C. 

      Stomach – decreased motility

    • D. 

      Hair follicles – contraction of arrector pili muscles

    • E. 

      Adipose tissue – increased lipolysis


  • 48. 
    The primary difference between an autonomic reflex arc and a somatic reflex arc is that the former has two motor neurons connecting the CNS to an effector.
    • A. 

      True

    • B. 

      False


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