Pathway Recap Flashcards
medial lemniscal
information: Proprio ,vibration, discriminate touch
start/end: cutaneous mechano or proprioceptors/postcentral gyrus
decussation: caudal medulla
spinothalamic
information: location/intensity, pain, temp, crude touch
start/end: mechanoreceptors/ postcentral gyrus
decussation: anterior commissure
spinoreticular
information: emotional and arousal aspect of pain
start/end: mechanoreceptors/multiple cortical projections
decussation: anterior commissure
spinomesencephalic
information: pain modulation
start/end: mechanoreceptors/ periaqueductal grey + sup colliculus
decussation: anterior commissure
lateral corticospinal
info: motor for extremities; quick+dexterous movement , myotatic reflex
start/end: precentral gyrus/target muscles
decussation: medullary pyramids
anterior corticospinal
info: bilateral axial and girdle muscles
start/end: precentral gyrus+SMA+premotor cortex/both sides of trunk
decussation: NONE (bifurcation @ medial intermediate zone in SC)
rubrospinal
info: inhibit ext, modulate flexors
start/end: red nucleus (midbrain)/target muscle
decussation: ventral teg area (midbrain)
reticulospinal
info: posture ctrl, gait >inhibit flexor and excite ext @ pons and opposite @ medulla
start: ponto-med reticular formation/target muscle
decussation: NONE
tectospinal
info: head/neck coordination
start/end: superior colliculus/cervical muscles
decussation: dorsal teg area (midbrain)
medial vestibulospinal
info: head/body position, walking upright, righting
start/end:lat vestibular nuclei/ ext muscles
decussation: NONE
lat vestibulospinal
info: head position,integrating head/eye movement
start/end: med vestibular nuclei
decussation: NONE (bilateral)
