Exam 2 - Pathways Flashcards
Spinothalamic Tract
pain and temperature from the body
Trigeminospinothalamic Tract
pain and temperature from the face
Lemniscal
Touch, pressure, proprioception from body
Trigeminal
Touch, pressure, proprioception from face
Optic lesion on R optic N or retina
lose R visual field
Optic lesion on L tract after chiasm
R homologous hemianopsia
Optic lesion on optic chiasm
bitemporal hemianopsia (tunnel vision)
Optic lesion on opposite occipital lobe
quadrantinopsia
Pupillary light reflex
light > receptors > bipolar > ganglion > CNII > superior colliculus of midbrain > parasympathetic nucleus of oculomotor nerve > ciliary ganglion > ciliary N > iris
Accomodation Reflex
CN II > occipital lobe > superior colliculus of midbrain > parasympathetic nucleus of oculomotor nerve > CN III > ciliary ganglion > lens
Area 4
frontal lobe
simple, fine, isolated movements
Area 6
frontal lobe
motor planning
Area 8
frontal lobe
eye movement, voluntary cordinated scanning
Area 44-45
frontal lobe
speech
Area 9-10
prefrontal lobe
working memory, motivation, motor planning, decision making, problem solving, attention
Area 3, 1, 2
parietal lobe
distinguish shape, texture, size; proprioception
Area 17
occipital lobe
light intensity, shape, size, object location
Area 41
temporal lobe
loudness and pitch of sounds