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WorksheetsChapter 12: Peripheral Nervous System
Total questions: 18
Worksheet time: 9mins
Match the axons with their classifications: axons to extrafusal muscle fibers
Ia
AB or C
Aa
Ay
Match the axons with their classifications: axons to intrafusal muscle fibers
Ia
AB or C
Aa
Ay
Match the axons with their classifications: axons that convey sensory information perceived as pain and temperature
Ia
AB or C
Aa
Ay
Match the axons with their classifications: axons that convey sensory information perceived as touch and pressure
Ia
AB or C
Aa
Ay
What is the most functionally important branch of the cervical plexus
branch to the sternocleidomastoid muscle
branch to the biceps brachii
branch to the triceps
phrenic nerve
musculocutaneous nerve
Which one of the plexuses innervates the posterior thigh and most of the leg and foot
cervical
brachial
lumbar
sacral
Miniature endplate potentials are essential for which of the following:
inhibiting the action of lower motor neurons
initiating contraction of muscles
preventing atrophy of muscle fibers
all of the above
Trophic changes after denervation include which of the following:
muscle atrophy
shiny skin
brittleness of fingernails and toenails
all of the above
match each specific lesion with its classification: rupture of the ulnar nerve, secondary to the fracture of the humerus
traumatic myelinopathy
traumatic axonopathy
traumatic severance
multiple mononeuropathy
polyneuropathy
match each specific lesion with its classification: decreased sensation in a stocking/glove distribution
traumatic myelinopathy
traumatic axonopathy
traumatic severance
multiple mononeuropathy
polyneuropathy
match each specific lesion with its classification: loss of sensory, autonomic, and motor function of the right musculocutaneous and femoral nerves and the left sciatic nerve
traumatic myelinopathy
traumatic axonopathy
traumatic severance
multiple mononeuropathy
polyneuropathy
match each specific lesion with its classification: chronic compression of the median nerve resulting in mild demyelination
traumatic myelinopathy
traumatic axonopathy
traumatic severance
multiple mononeuropathy
polyneuropathy
match each specific lesion with its classification: crushing injury of the peroneal nerve
traumatic myelinopathy
traumatic axonopathy
traumatic severance
multiple mononeuropathy
polyneuropathy
In a recording from a nerve conduction velocity (NCV) study, decreased amplitude of recorded potentials, combined with slowing of NCV, indicates which of the following:
Myelinopathy
Myopathy
Myasthenia Gravis
Upper Motor Neuron Lesion
Axonopathy
If NCV studies show that conduction is slowed at a single site in one nerve, yet the NCV is normal throughout the remainder of the nerve and in other nerves, the disorder is which of the following:
Traumatic myelinopathy
Axonopathy
Severance Injury
Myopathy
Polyneuropathy
If the NCV is normal along the length of the peripheral nerve, yet the amplitude of the electromyogram (EMG) potential is decreased, the disorder is:
Myelinopathy
Myopathy
Lower motor neuron lesion
Upper motor neuron lesion
Axonopathy
Myasthenia Gravis is an autoimmune disease affecting the:
myelin of peripheral nerves
ACh receptors at the neuromuscular junction
Release of ACh from the presynaptic terminal
Storage of calcium in the sarcoplasmic reticulum
alpha motor neurons in the ventral horn of the spinal cord
Guillian-Barre syndrome is an autoimmune disease that causes:
necrosis of the alpha motor neuron
degeneration of the motor endplate
spasticity
peripheral demyelination
degeneration of the C-fiber axons
