Exam And Anatomy

Question 1

Problem with calculations, right/left confusion, finger agnosia, can’t write.
Name syndrome and location of lesion.

Answer 1

Gerstmann syndrome: left inferior parietal lobule, association area

Question 2

Which cerebral cortex layers involve interactions with thalamus? Describe input and output.

Answer 2

Layer 4: granular, input from thalamus

Layer 6: polymorphic, outputs to thalamus

Question 3

Which cerebral layers are cortical-cortical and which output to subcortical structures?

Answer 3

Layers 2,3: cortical-cortical.

Layer 5: lg pyramidal: output to subcortical

Question 4

Define and locate:

Anosognosia

Answer 4

Unaware of deficit, non dominant parietal

Question 5

Define and locate: apraxia

Answer 5

Motor planning and conceptualization

Frontal/ left parietal

Question 6

Define and locate:

Achromatopsia, palinopsia, prosopagnosia

Answer 6

Probs with visual association, not recognizing colors, persistence of previously viewed objects, not recognizing faces.
Parieto-occipital and inferior temporal lobes

Question 7

Localize if there is light/near dissociation (pupils constrict for accommodation, not light)

Answer 7

Pretectal area

Question 8

Localize: contralateral trapezius only weakness w/o scm involved

Answer 8

UMN (not a peripheral CN XI)

Question 9

What movement is involved in UMN scm weakness?

Answer 9

Turning head away from side of lesion is a problem (head stuck on centrally weak side)

Question 10

Normal cold caloric response involves fast phase in which direction? What do you see in coma?

Answer 10

Cold water drives fast phase in opposite direction normally, so you actually see slow tonic movement toward the water in coma.