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N PNI

study for quiz

TermDefinition
neurons functional part of PNI. Motor & skeletal mm they innervate. Sensory & receptors in connective tissue, jts & blood vessels. Autonomic
Connective tissue bundles structural part
nerve gliding when jt moves & tension is placed on nerve bed-nerve gliding is twd moving jt (convergence) & when tension is relieved, nerve gliding is away from the moving jt (divergence)
Erb's C5-C6 plexus injury-most common-happens @ birth or football stinger
Klumpke C8-T1-effects intrinsics- baby born w/arm over head
progression of symptoms in peripheral nerve injury sensory 1st- starts distal 1st, hand/foot, stocking/glove
PNI injury by mechanism- Primary compression (entrapment, TOS, CTS, piriformis), laceration, stretch -> tear, other (radiation, electricity, chemotherapy)
PNI injury by mechanism- Secondary hemorrhage, edema
neuropraxia segmental demyelination action potentials slowed or blocked at point of demylination. mm doesn't atrophy, RECOVERY USUALLY COMPLETE- LEAST SERIOUS-mild ischeia from compression or traction, results sensory & motor
axonotmesis damaged but connective tissue intact caused by stretching or compression. result: motor w/atrophy & sensory loss, wallerian degeneration-distal probs, incomplete recovery, may require sx
neurotmesis damaged axon & tissue. laceration, rupture-motor & sensory damage & atrophy. wallerian damage, sx
Wallerian degeneration myelin degenerates axons- can't translate signals
cones & sprouts conelike tips of axons & dendrites-sprouts-where they are growing out
connective tissue sheaths status over time if body part doesn't heal correctly-sheaths may shrink bakc
which nerves have excellent regeneration potential radial, musculocutaneous & femoral
which nerves have mod regeneration potential medial, ulnar, tibial
which nerves have poor regeneration potential perineal
TOS (thoracic output syndrome) scalenes, clavicle, 1st rib, pec minor, cervical rib- thru brachial plexus & can be vascular
CTS (carpal tunnel syndrome) median nerve compression-sensory loss, motor wkness
mm tested, DTR's lost & site of atrophy for radial nerve damage above elbow triceps
mm tested for radial nerve damage below elbow wrist ext, finger ext
where would atrophy be seen w/ radial nerve damage below elbow all mm except elbow ext
mechanisms of injury w/Bell's Palsy inflamed, swollen, impaired or compressed facial nerve that results in facial wkness or paralysis, usually unilaterally.
mm testing for Bell's palsy try to close eyelid & puff out cheeks & move facial mm
what causes ERb's palsy downward traction injury to baby's upper brachial plexus & occurs during difficult childbirth
position associated with Erb's palsy waiters tip position - shd ext, med rot, elbow ext, forearm pronated, wrist flex, shd add
mmt for Erb's palsy shd abd, elbow flex, wrist ext
DTR's lost with Erb's palsy biceps diminished or absent
atrophy w/ Erb's palsy weak mm in shd ext, elbow flex & supination
could swaddle a baby instead of using a splint for... Erb's palsy
common mechanisms of injury of sciatic nerve hip compression from tight piriformis, hip dislocation, fx of femur
mmt for mm affected by injury of sciatic nerve hip hip ext & knee flex- test in prone
where would atrophy be seen w/injury of sciatic nerve hip post thigh, leg & foot
gait probs associated w/injury of sciatic nerve hip wk knee flex & loss of ankle & foot control affecting all phases of gait
common mechanisms of injury of sciatic nerve tibial popliteal space blunt force trauma, compression, vascular malformations, lipoma, hematoma, Baker's cyst, fx or scar tissue
posture associated w/injury of sciatic nerve tibial popliteal space claw toes, possible pes planus (flat foot), valgus of ankle
mmt for mm affected by injury of sciatic nerve tibial popliteal space plantarflex & inv
lost or diminished DTR w/injury of sciatic nerve tibial popliteal space achilles
mm atrophy w/injury of sciatic nerve tibial popliteal space gastroc
gt probs w/injury of sciatic nerve tibial popliteal space loss of plantarflex, leading to inability to push off in the terminal stance phase
any orthotic/splint needed for Bell's palsy eye patch
any orthotic/splint needed for Erb's palsy elbow lock splint & cock up splint, or could swaddle baby
any orthotic/splint needed for sciatic nerve hip femur brace
any orthotic/splint needed for sciatic nerve tibial popliteal space arch support, air splint
common mechanisms of injury of sciatic nerve peroneal compression from crossing the legs. injury from fx at head/neck of fibula
mmt for injury of sciatic nerve peroneal toe ext
gt probs w/injury of sciatic nerve peroneal during loading response foot will slap w/ unopposed eversion - foot drop. hip hike
any orthotic/splint needed for sciatic nerve peroneal AFO
causes of injury to femoral/obturator nerve trauma & probs w/ labor
mmt for injury of femoral/obturator nerve iliacus, sartorius, quads, ER, ADD
DTR lost w/injury of femoral/obturator nerve patellar
atrophy w/injury of femoral/obturator nerve ant & med thigh (quads & add)
gt probs w/injury of femoral/obturator nerve hip hike, circumduction, knee slap
any orthotic/splint needed for femoral/obturator nerve may need KAFO
common mechanisms of injury of median nerve fx/dislocation of elbow impingement in hypertophied pronator teres or fx/dislocation of elbow
posture associated w/ injury of median nerve fx/dislocation of elbow ape hand
mmt for injury of median nerve fx/dislocation of elbow thumb & fingers- all mvmts
any orthotic/splint needed for injury of median nerve fx/dislocation of elbow cone to keep fingers out of flex
common mechanisms of injury of median nerve wrist site CTS tendonosis, tendonitis, OA, trauma, carpal dislocation, RA, pregnancy. sensory symptoms come 1st, pn @ night-numbness
posture associated w/injury of median nerve wrist site CTS sustained wrist flex, ulnar dev
mmt for injury of median nerve wrist site CTS pinch & grip positions
mm that may atrophy w/injury of median nerve wrist site CTS mm of thenar eminence
common mechanisms of injury of ulnar nerve cubital tunnel affects the forearm mm, impingement btwn heads of flexor carpi ulnaris affects the wrist flexors, compression in tunnel of Guyon @ wrist affects the wrist & hand mm
posture w/injury of median nerve wrist site CTS partial claw
mmt for injury of median nerve wrist site CTS wrist flex & ulnar dev
orthotic/splint needed for injury of median nerve wrist site CTS rest w/cock up splint
common mechanisms of injury of axillary nerve prox humerus-compression, shd dislocation, stretching
posture w/injury of axillary nerve square shd from deltoid mm atrophy
mmt for injury of axillary nerve ER & shd ABD
DTR lost w/injury of musculocutaneous nerve biceps brachii
atrophy w/injury of axillary nerve deltoid
common mechanisms of injury of musculocutaneous nerve invasive trauma-laceration such as injection
mmt for injury of musculocutaneous nerve elbow flex & supination
atrophy w/injury of musculocutaneous nerve flexor surface of upper arm
Created by: jessigirrl4