Neuro Flashcards
What is tone?
A state of partial contraction present in a muscle in its passive state.
What is spasticity?
A state of increased tone of a muscle.
What is fasciculation?
Involuntary contractions or twitchings of groups of muscle fibers.
Upper Motor Neuron is characterized by?
UMN:
(1) + tone/spasticity.
(2) ↑ reflexes.
(3) − atrophy.
(4) − fasciculations.
Lower Motor Neuron is characterized by?
LMN:
(5) ↓ tone.
(6) + flaccidity.
(7) − reflexes.
(8) + atrophy.
(9) + fasciculations.
UMN disease is often the result of what 2 things?
stroke
brain injury
LMN disease can involve what 3 things?
Spinal Cord
Peripheral Nerve
Muscle
UE motor testing: First inspect the muscle for what 3 things?
(1) abnormal movements.
(2) bulk versus atrophy.
(3) tone versus spasticity versus flaccidity.
UE motor testing: Pronator Drift.
(1-4) Explain procedure.
(5) What is this test very sensitive for?
(6) Where might a patient with a + pronator drift have a lesion?
(1) Arms out straight.
(2) Palms up.
(3) Eyes closed.
(4) Watch for DRIFT of arm downward OR more subtle PRONATION.
(5) UE weakness.
(6) contralateral corticospinal tract lesion.
UE motor testing: Deltoids.
(1) Innervation?
(2-3) Explain procedure.
(1) C5.
(2) Arms straight or out to side.
(3) Don’t let me push them down.
UE motor testing: Biceps.
(1) Innervation?
(2-3) Explain procedure.
(1) C5,6.
(2) Make a muscle.
(3) Don’t let me straighten your arm.
UE motor testing: Triceps.
(1) Innervation?
(2-3) Explain procedure.
(1) C6,7.
(2) Straighten your elbow.
(3) Don’t let me bend it.
UE motor testing: Wrist extensors.
(1) Innervation?
(2-3) Explain procedure.
(1) C6,7.
(2) Put hand up like you’re trying to stop traffic.
(3) Don’t let me pull your hand down.
UE motor testing: Wrist flexors.
(1) Innervation?
(2-3) Explain procedure.
(1) C6, 7.
(2) Flex wrist.
(3) Don’t let me lift up your hand.
UE motor testing: Test for grip (finger flexion).
(1) Innervation?
(2-3) Explain procedure.
(1) C8.
(2) Give pt your index finger.
(3) Ask them to squeeze as hard as they can.
Won’t hurt you squeezing just one or two fingers
UE motor testing: Intrinsic muscles of the hand.
(1) Innervation?
(2-3) Explain procedure.
(1) T1.
(2) Fan fingers out.
(3) Don’t let me squeeze them back together.
UE motor testing: Test thumb opposition.
(1) Innervation?
(2-3) Explain procedure.
(1) C8, T1.
(2) Touch tip of thumb to pinky.
(3) Don’t let me separate them.
LE motor testing: Hip flexion.
(1) Innervation?
(2-4) Explain procedure.
(1) L2,3.
(2) Supine
(3) Lift leg off exam table.
(4) Don’t let me push your leg down.
LE motor testing: Adduction of hips.
(1) Innervation?
(2-3) Explain procedure.
(1) (L2,3,4).
(2) Spread legs.
(3) Try to bring them together while you hold apart.
LE motor testing: Abduction of hips .
(1) Innervation?
(2-3) Explain procedure.
1) (L4,5).
(2) Hold legs together.
(3) Ask pt to spread legs.