Reflexes

what is the order of deep tendon reflexes?

sensory receptors, afferent neurons, efferent neurons, muscles/glands

reflex response with cerebellar lesion?

mild decrease

reflex response with UMN lesion?

hyper-reflexic

reflex response with LMN lesion?

hypo-reflexic

what is the grading scale 0 for reflex? (ie. nerve root compression)

absent

what is the grading scale 2+ for reflex?

normal

what is the grading scale 4+ for reflex? (ie. stroke)

hyper-reflexive (clonus)

what is the grading scale 1+ for reflex?

diminished

what is the grading scale 3+ for reflex?

more reflexive

what is the grading scale 5+ for reflex?

sustained clonus

What is the relationship between the cutaneous receptors stimulated & muscles contracted in the superficial cutaneous reflex? What do they share?

the same spinal segment for innervation

The most common superficial cutaneous reflex that you will assess in neurologic practice is the plantar reflex. What is an abnormal finding called? What type of lesion it is associated?

Babinski, big toe will extend, 4 other toes fan out (UMN lesion)

The most common superficial cutaneous reflex that you will assess in neurologic practice is the plantar reflex. What does a normal finding look like?

flexion of big toe, can see flexion or no response of other toes

In what pt might you be interested in testing the flexor withdrawal reflex? What info could it provide in the type of pt that you identified?

TBI, to tell if some motor function at some level

a prolonged contraction reflex (morphs away)

tonic reflex