CHT EXAM - PERIPHERAL NERVE
INJURIES QUESTIONS WITH CORRECT
ANSWERS
Where are cell bodies of motor neurons housed? - ANSWER-1. anterior horn of spinal
cord
Where are cell bodies of sensory neurons housed? - ANSWER-1. just outside SC in
dorsal root ganglion
saltatory conduction - ANSWER-1. the jumping of action potentials from node to node
Perineurium - ANSWER-1. connective tissue sheath enclosing bundles of nerves called
fascicles
At what level of a nerve does surgical repair occur? - ANSWER-1. fascicles
arteriae nervorum - ANSWER-1. intrinsic blood supply to nerves
Nervi nervorum - ANSWER-1. intrinsic nerve supply to nerves
Dorsal rami - ANSWER-1. supply nerve fibers to deep muscles of back and overlying
skin
Ventral rami - ANSWER-1. supply nerve fibers to anterior, lateral trunk and upper and
lower limbs muscles and skin
Brachial plexus mnemonic - ANSWER-Robert Taylor Drinks Cold Beer
Sensory re-education - ANSWER-1. Active training strategies used in the presence of a
peripheral nerve injury to enhance sensory awareness or compensate for lack of
sensation
Indications for sensory re-education - ANSWER-1. severely decreased sensibility as
evidenced by inability to perceive potentially harmful stimuli
Early phase sensory re-education - ANSWER-1. gross sensory (moving touch, constant
touch, vibration) with and without visual input
2. pt attention to area with and without visual input
3. touch localization in area just stimulated with and without visual input
, Supraclavicular sections of brachial plexus - ANSWER-1. roots
2. trunks
3. divisions
Peripheral nerves arising from roots - ANSWER-1. dorsal scapular nerve (c5,
rhomboids and +/- lev scap)
2. long thoracic nerve (C5-7, serratus anterior)
Location of brachial plexus trunks - ANSWER-1. between lateral border of anterior
scalene and clavicle
Location of roots of brachial plexus - ANSWER-1. pass through gap formed by middle
and anterior scalenes with subclavian artery
Superior trunk of brachial plexus - ANSWER-1. formed by C5-6
Peripheral nerves from superior trunk - ANSWER-1. nerve to subclavius (C5)
2. Suprascapular nerve (C5-6, infra and supra)
Middle trunk - ANSWER-1. continuation of C7
Lower trunk - ANSWER-1. formed from union of C8 and T1
Location of the divisions of the brachial plexus - ANSWER-1. behind clavicle
Anterior division of brachial plexus - ANSWER-1. innervates anterior muscles and skin
in anatomical position
Posterior division of brachial plexus - ANSWER-1. innervates posterior muscles and
skin in anatomical position
T/F There are no peripheral nerves arising from divisions - ANSWER-True
Infraclavicular sections of brachial plexus - ANSWER-1. Cords
2. branches
Cords are named for their relationship to what artery? - ANSWER-1. axillary
Lateral cord - ANSWER-1. made up of superior and middle portion of anterior division
Peripheral nerves arising from lateral cord - ANSWER-1. Lateral pectoral (C5-7, pec
major)
2. Musculocutaneous nerve (C5-7, biceps, coracobrachialis, brachialis. Continues to
becomes lateral cutaneous nerve of forearm)
3. Lateral root of median nerve (C6-7)
INJURIES QUESTIONS WITH CORRECT
ANSWERS
Where are cell bodies of motor neurons housed? - ANSWER-1. anterior horn of spinal
cord
Where are cell bodies of sensory neurons housed? - ANSWER-1. just outside SC in
dorsal root ganglion
saltatory conduction - ANSWER-1. the jumping of action potentials from node to node
Perineurium - ANSWER-1. connective tissue sheath enclosing bundles of nerves called
fascicles
At what level of a nerve does surgical repair occur? - ANSWER-1. fascicles
arteriae nervorum - ANSWER-1. intrinsic blood supply to nerves
Nervi nervorum - ANSWER-1. intrinsic nerve supply to nerves
Dorsal rami - ANSWER-1. supply nerve fibers to deep muscles of back and overlying
skin
Ventral rami - ANSWER-1. supply nerve fibers to anterior, lateral trunk and upper and
lower limbs muscles and skin
Brachial plexus mnemonic - ANSWER-Robert Taylor Drinks Cold Beer
Sensory re-education - ANSWER-1. Active training strategies used in the presence of a
peripheral nerve injury to enhance sensory awareness or compensate for lack of
sensation
Indications for sensory re-education - ANSWER-1. severely decreased sensibility as
evidenced by inability to perceive potentially harmful stimuli
Early phase sensory re-education - ANSWER-1. gross sensory (moving touch, constant
touch, vibration) with and without visual input
2. pt attention to area with and without visual input
3. touch localization in area just stimulated with and without visual input
, Supraclavicular sections of brachial plexus - ANSWER-1. roots
2. trunks
3. divisions
Peripheral nerves arising from roots - ANSWER-1. dorsal scapular nerve (c5,
rhomboids and +/- lev scap)
2. long thoracic nerve (C5-7, serratus anterior)
Location of brachial plexus trunks - ANSWER-1. between lateral border of anterior
scalene and clavicle
Location of roots of brachial plexus - ANSWER-1. pass through gap formed by middle
and anterior scalenes with subclavian artery
Superior trunk of brachial plexus - ANSWER-1. formed by C5-6
Peripheral nerves from superior trunk - ANSWER-1. nerve to subclavius (C5)
2. Suprascapular nerve (C5-6, infra and supra)
Middle trunk - ANSWER-1. continuation of C7
Lower trunk - ANSWER-1. formed from union of C8 and T1
Location of the divisions of the brachial plexus - ANSWER-1. behind clavicle
Anterior division of brachial plexus - ANSWER-1. innervates anterior muscles and skin
in anatomical position
Posterior division of brachial plexus - ANSWER-1. innervates posterior muscles and
skin in anatomical position
T/F There are no peripheral nerves arising from divisions - ANSWER-True
Infraclavicular sections of brachial plexus - ANSWER-1. Cords
2. branches
Cords are named for their relationship to what artery? - ANSWER-1. axillary
Lateral cord - ANSWER-1. made up of superior and middle portion of anterior division
Peripheral nerves arising from lateral cord - ANSWER-1. Lateral pectoral (C5-7, pec
major)
2. Musculocutaneous nerve (C5-7, biceps, coracobrachialis, brachialis. Continues to
becomes lateral cutaneous nerve of forearm)
3. Lateral root of median nerve (C6-7)
