Powerrepeat neuroanatomy

11 important questions on Powerrepeat neuroanatomy

What is the difference between temporal and nasal retina?

Temporal retina does not cross, nasal retina does cross in the optic chiasm.

What type of information does the temporal retina contain?

Information abou the fixation point

What is the difference between the lateral and medial geniculate nucleus (LGN; MGN)?

LGN: visual system
MGN: auditory system
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What happens if there is a lesion in the optic chiasm?

Crossing is lost so nasal information from both eyes is lost (temporal field is lost).

What are the borders of the visual cortex?

Parieto-occipital fissure & pre-occipital insure.

What is the stria of Gennari?

The extra layer within layer 4, layer 4B.

What is the difference between the dorsal and ventral pathway of vision?

V5 is the dorsal pathway, goes to parietal lobe to get visual spatial input (where)
V4 is the ventral pathway, goes to the temporal lobe, what am I looking at.

What is surrounding the hippocampus?

Lateral ventricle

What is the lateral corticospinal tract?

The descending tract containing motor information.

What is the dorsal columns-lemniscus medialis system? Where does this system cross?

The ascending tract of gnostic (propriocepsis and touch) information. It crosses at the caudal medulla.

What is the anterolateral pathway? Where does it cross?

It is the ascending tract of vital information (pain & temperature). It crosses to the contralateral side at the spinal cord.

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