VPHY 3100 UGA with complete correct
answers already passed
# of pairs of cranial nerves - correct answer ✔✔12 exit brain
# of pairs of spinal nerves - correct answer ✔✔31 exit spinal cord
Autonomic nervous system - correct answer ✔✔Regulation of cardiac muscle,
smooth muscle, and glands. Control of involuntary visceral organs and blood
vessels
Central control: frontal cortex and subcortical structures (A vs. S) - correct answer
✔✔Somatic motor system
Central control: Hypothalamus, brainstem, and spinal cord (A vs. S) - correct
answer ✔✔Autonomic motor system
What are the effector organs of the somatic motor system? - correct answer
✔✔Skeletal muscles
What are the effector organs of the autonomic motor system? - correct answer
✔✔Cardiac muscle, smooth muscle glands.
Presence of ganglia in Somatic motor system? - correct answer ✔✔no
,Presence of ganlia in the autonomic motor system? - correct answer ✔✔Cell
bodies of post ganglionic autonomic fibers located in paravertebral, prevertebral
(collateral), and terminal ganglia
Number of neurons from CNS to effector for somatic motor - correct answer ✔✔1
Number of neurons from CNS to effector for autonomic motor - correct answer
✔✔2
Type of neuromuscular junction for somatic motor - correct answer
✔✔specialized motor end plate
Type of neuromuscular junction for autonomic motor - correct answer ✔✔No
specialization of postsynaptic membrane. All areas of smooth muscle cells contain
receptor proteins for neurotransmitters
Effect of nerve pulse on muscle for somatic motor - correct answer ✔✔Excitatory
only
Effect of nerve pulse on muscle for autonomic motor - correct answer ✔✔can be
excitatory or inhibitory
Type of nerve fibers for somatic motor - correct answer ✔✔Fast conducting, thick,
myelinated
,Type of nerve fibers for autonomic motor - correct answer ✔✔Slow conducting,
preganglionic fibers slightly myelinated but thin, postganglionic fibers un-
myelinated and very thin
Effect of denervation on somatic motor - correct answer ✔✔Flaccid paralysis and
atrophy
Effect of denervation on autonomic motor - correct answer ✔✔Muscle tone and
function persist; target cells show denervation and hypersensitivity
Parasympathetic? what? - correct answer ✔✔Rest & digest
sympathetic? What? - correct answer ✔✔Fight or flight
What lines either side of the spinal cord? - correct answer ✔✔A sympathetic
chain of ganglia
Preganglionic axons split from the spinal nerves via ___________ wherein they
enter the ________ - correct answer ✔✔White Rami : Paravertebral ganglia
Some preganglionic fibers synapse with postganglionic neurons within the
sympathetic chain of ganglia; these postganglionic neurons leave through the
_______ and rejoin the _____ - correct answer ✔✔Grey Rami : Spinal nerves
, Some preganglionic fibers simply pass through the sympathetic chain of ganglia,
forming ________, and synapse with postganglionic neurons within __________ -
correct answer ✔✔Splanchnic nerves : Collateral (pre vertebral) ganglia
Some preganglionic fibers also innervate the ________ , causing it to secrete
______ and ______ into the blood. - correct answer ✔✔adrenal medulla : epi and
norepi
Mass activation - correct answer ✔✔the Sympathetic system is usually activated
as a single unit
Where do Sympathetic preganglionic fibers originate? - correct answer
✔✔Thoracic and lumbar of spinal cords
Where do parasympathetic nerve fibers originate? - correct answer ✔✔The
midbrain, Pons, Medulla, and sacral levels of spinal cord.
Where do preganglionic fibers synapse with postganglionic fibers in the
parasympathetic system? - correct answer ✔✔Terminal ganglia which lie close to
or within target organs.
What nerves are the primary route of innervation for the parasympathetic
nervous system? - correct answer ✔✔Vagus nerves:
Heart
Lungs
Esophagus
answers already passed
# of pairs of cranial nerves - correct answer ✔✔12 exit brain
# of pairs of spinal nerves - correct answer ✔✔31 exit spinal cord
Autonomic nervous system - correct answer ✔✔Regulation of cardiac muscle,
smooth muscle, and glands. Control of involuntary visceral organs and blood
vessels
Central control: frontal cortex and subcortical structures (A vs. S) - correct answer
✔✔Somatic motor system
Central control: Hypothalamus, brainstem, and spinal cord (A vs. S) - correct
answer ✔✔Autonomic motor system
What are the effector organs of the somatic motor system? - correct answer
✔✔Skeletal muscles
What are the effector organs of the autonomic motor system? - correct answer
✔✔Cardiac muscle, smooth muscle glands.
Presence of ganglia in Somatic motor system? - correct answer ✔✔no
,Presence of ganlia in the autonomic motor system? - correct answer ✔✔Cell
bodies of post ganglionic autonomic fibers located in paravertebral, prevertebral
(collateral), and terminal ganglia
Number of neurons from CNS to effector for somatic motor - correct answer ✔✔1
Number of neurons from CNS to effector for autonomic motor - correct answer
✔✔2
Type of neuromuscular junction for somatic motor - correct answer
✔✔specialized motor end plate
Type of neuromuscular junction for autonomic motor - correct answer ✔✔No
specialization of postsynaptic membrane. All areas of smooth muscle cells contain
receptor proteins for neurotransmitters
Effect of nerve pulse on muscle for somatic motor - correct answer ✔✔Excitatory
only
Effect of nerve pulse on muscle for autonomic motor - correct answer ✔✔can be
excitatory or inhibitory
Type of nerve fibers for somatic motor - correct answer ✔✔Fast conducting, thick,
myelinated
,Type of nerve fibers for autonomic motor - correct answer ✔✔Slow conducting,
preganglionic fibers slightly myelinated but thin, postganglionic fibers un-
myelinated and very thin
Effect of denervation on somatic motor - correct answer ✔✔Flaccid paralysis and
atrophy
Effect of denervation on autonomic motor - correct answer ✔✔Muscle tone and
function persist; target cells show denervation and hypersensitivity
Parasympathetic? what? - correct answer ✔✔Rest & digest
sympathetic? What? - correct answer ✔✔Fight or flight
What lines either side of the spinal cord? - correct answer ✔✔A sympathetic
chain of ganglia
Preganglionic axons split from the spinal nerves via ___________ wherein they
enter the ________ - correct answer ✔✔White Rami : Paravertebral ganglia
Some preganglionic fibers synapse with postganglionic neurons within the
sympathetic chain of ganglia; these postganglionic neurons leave through the
_______ and rejoin the _____ - correct answer ✔✔Grey Rami : Spinal nerves
, Some preganglionic fibers simply pass through the sympathetic chain of ganglia,
forming ________, and synapse with postganglionic neurons within __________ -
correct answer ✔✔Splanchnic nerves : Collateral (pre vertebral) ganglia
Some preganglionic fibers also innervate the ________ , causing it to secrete
______ and ______ into the blood. - correct answer ✔✔adrenal medulla : epi and
norepi
Mass activation - correct answer ✔✔the Sympathetic system is usually activated
as a single unit
Where do Sympathetic preganglionic fibers originate? - correct answer
✔✔Thoracic and lumbar of spinal cords
Where do parasympathetic nerve fibers originate? - correct answer ✔✔The
midbrain, Pons, Medulla, and sacral levels of spinal cord.
Where do preganglionic fibers synapse with postganglionic fibers in the
parasympathetic system? - correct answer ✔✔Terminal ganglia which lie close to
or within target organs.
What nerves are the primary route of innervation for the parasympathetic
nervous system? - correct answer ✔✔Vagus nerves:
Heart
Lungs
Esophagus
