Functional localization Flashcards
what are the 4 clinical levels and what do they contain
- supratentorial - hemispheres and CN 1 and 2
- infratentorial - midbrain, pons, medulla, cerebellum CN 3-12
- spinal level - cord
- peripheral - cranial, autonomic and spinal nerves, including dorsal and ventral roots
what are segmental functions
neurons entering or leaving CNS and connecting to peripheral target - lesion interuppts flow into or out of CNS
what are long. functions
tracts passing through a level - lesion may affect up or below that area
what are segmental funct. of supratentorial levels (6)
- vision
- smell
- language
- memory
- cognition
- autonomic integration via pit.
what are long funct. of supratentorial (2)
- sense and motor to contralateral side of body and face
2. autonomic functions via hypothalamic pathways
what are segmental Sx of supratentorial lesions (6)
- loss of higher Fx
- headache
- altered mental status
- nausea/vomiting
- papilledema
- diploplia
what are segmental Fx of infratentorial (5)
- ipsi functions of CN 3-12
- resp, cardio
- muscle coordination (cerebellum)
- postural control
- consciousness and sleep
what are long. Fx of infratentorial
- sense and motor to contralateral BODY
2. sense and motor to ipsilateral FACE
what are seg. Fx of spinal level
sense, motor, autonomic for that spinal segment
what are 2 long Fx of spinal level
- motor below that level
2. sensory to above that level
what are segmental and long. symptoms of spinal level lesions
segmental: loss of sense to dermatome and motor to myotome
long. - loss of sense and motor below that level
what are segmental functions of peripheral level
loss of function to that nerve only
what are long. functions of peripheral level
none
