Somatosensory system 2 Flashcards
Dorsal column medial leminscal (DCML) pathway is responsible for what?
Discriminatory touch
Pressure
Vibration
Conscious proprioception
Which pathway is responsible for discriminatory touch, pressure, vibration and conscious proprioception?
Dorsal column medial leminiscal pathway
Crude touch Itch Tickle Pain Thermatosensation
Spinothalamic tract
The gracile tract and the cuneate tract make up what?
The dorsal columns
Sensory input above T6 travel in which tract? i.e. arms and upper trunk
Fasciculus cuneatus (cuneate tract)
Sensory input to T6 and below travels in which tract? i.e. legs and lower trunk
Fasciculus gracilis (gracile tract)
this tract runs the length of the spinal cord
V1
Opthalmic
V2
Maxillary
V3
Mandibular
Brodmann area 3a responsible for what?
Body position
Brodmann area 3b responsible for what?
Touch (texture, shape, stimulus size)
Lesion in Brodmann area 3b would result in what?
Deficits in texture, shape, discrimination
Brodmann area 1 responsible for what?
Texture discrimination
Lesion in Brodmann area 1 would result in what?
Loss of texture dicrimination
Brodmann area 2 responsible for what?
Object perception (size, shape of object - stereognosis)