Orthopaedic Neurology Quiz
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Which muscle has almost a pure C5 innervation
A. Deltoid only
B. Deltoid and Biceps
C. Biceps only
Testing for C5 integrity involves testing which muscles
A. Deltoid only
B. Deltoid and Biceps
C. Biceps only
What is the MAJOR innervator nerve root of diaphragm?
A. C4
B. C6
C. C7
D. C2
Deltoid Muscle = C5,C6 =
A. Axillary Nerve
B. Suprascapular Nerve
C. Radial Nerve
D. Ulnar Nerve
Interruption in basic architecture reflex such as damage to muscle spindle, axon, SC synapse, muscle fibers
A. Hyporeflexia
B. Hyperreflexia
C. Areflexia
The main nerve for the Deltoid C5 distribution is
A. Axillary Nerve
B. Musculocutaneous Nerve
C. Suprascapular
D. Radial Nerve
How will you notice the Biceps reflex?
A. Bicep will jerk slightly
B. Triceps will jerk slightly
C. Biceps will spastically contract
D. Biceps will contract for 10 secs
The Biceps Brachii is innervated by the
A. Musculocutaneous Nerve
B. Axillary Nerve
C. Radial Nerve
D. Suprascapular Nerve
Pressure on a nerve root can result in?
A. Hyporeflexia
B. Hyperreflexia
C. Areflexia
Biceps Brachii testing for C5 with
A. Elbow Flexion
B. Elbow Extension
C. Shoulder Abduction
The anterior part of the deltoid ____ the shoulder.
A. Flexes
B. Abducts
C. Extends
Supraspinatus Muscle = C5,C6 =
A. Axillary Nerve
B. Suprascapular Nerve
C. Radial Nerve
D. Ulnar Nerve
What is the role of the serratus anterior in shoulder abduction?
A. Stabilizes Scapula
B. Stabilizes Femoral head
C. Prepares the acromion for stress
D. Stabilizes clavicles
Upper motor neuron lesion/interruption can lead to?
A. Hyporeflexia
B. Hyperreflexia
C. Areflexia
Trauma to axillary Nerve/C5 root wi cause damage to dermatome that runs from
A. Summit of shoulder to elbow lateral
B. Left upper hip to knee
C. Lateral calf over great toe
D. Over the radial aspect of the wrist and thumb
This muscle has a mixture of C5 and C6
A. Deltoid only
B. Deltoid and Biceps
C. Biceps only
This reflex is an indicator of C5 neurologic integrity
A. Biceps Reflex
B. Brachioradialis Reflex
C. Gag Reflex
D. Triceps Reflex
This muscle is a flexor of the elbow and shoulder as well as the spinster of the forearm.
A. Biceps Brachii
B. Triceps Brachii
C. Brachioradialis
D. Dorsalis Pedis
The posterior part of the deltoid ____ the shoulder.
A. Flexes
B. Abducts
C. Extends
Which part of the deltoid abducts the shoulder most powerfully?
A. Middle
B. Anterior
C. Posterior
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