Sensory Function Flashcards
(10 cards)
Sterioagnosia
Inability to recognize an object by using tactile information only.
agnosia
Loss of ability to process sensory information
graphesthesia
ability to recognize writing on skin.
radiculopathy
Nerve root damage
myelopathy
damage to the spinal cord
Small un- or lightly myelinated fibers of a peripheral nerve convey:
pain and temp
large myelinated fibers of a peripheral nerve convey:
Proprioception and well localized touch
The Dorsal Columns / Medial Lemniscus convey: (3)
Decussate:
2 point discrimination, vibration, joint position sense
Decussates in medulla, thus it ascends ipsilaterally.
after crossing into the medial Lemniscus, it is contralateral.
The Spinothalamic tract conveys:
It decussates:
Pain, temperature, and light (poor localized) touch
Crosses at anterior white commisure, thus ascends contralaterally.
“Suspended sensory loss” in the bilateral upper body but not lower body would suggest a lesion in:
The center of the spinal cord.