Class 4 - Spinal Reflexes Flashcards
Spinal reflexes integrate in the _____, cranial reflexes integrate in the ______
spinal cord
brain stem
What defines a somatic reflex?
the effector is skeletal muscle
The sensory receptors in a tendon reflex are…
golgi tendon organs
Tendon reflexes are __synaptic and ___lateral
polysynaptic and ipsilateral
Which two reflexes always occur simultaneously?
flexor/withdrawal reflex + crossed extensor reflex
Where does the afferent + efferent info come from in a somato-somatic reflex?
somatic stimuli (such as muscle spindle activity) efferent is to skeletal muscle
Where does the afferent go + efferent come from in a viscero-somatic reflex?
localized visceral stimuli –> skeletal muscle effector
Where does the afferent + efferent info come from in a somato-visceral reflex?
visceral functions are activated or inhibited by somatic sensory stimulation
The patellar reflex is indicative of which spinal segments?
L2-L4
The achilles reflex is indicative of which spinal segments?
S1, S2
The bicipital reflex is indicative of which spinal segments?
C5, C6
The tricipital reflex is indicated of which spinal segments?
C7, C8
A positive Babinski sign is pathological after what age? What reflex do you WANT to see after that age?
18-24 months
plantar flexion reflex
Spinal damage in the case of tetraplegia is usually between…
C1-C7
Quadriplegia and paraplegia, is each spastic or flaccid?
either can be either!
