ACB 8120 Lecture Notes - Lecture 57: Calcarine Sulcus, Homonymous Hemianopsia, Medial Geniculate Nucleus

• School: University of Iowa
• Department: Anatomy and Cell Biology
• Course: ACB 8120
• Professor: Hoffman

Document Summary

Nasal field projects onto lateral region of retina. Temporal visual fields project onto medial region of retina. At optic chiasm, temporal field information decussates. Psns neurons = pupil constriction, light info brought in through. Cn ii and tells cn iii to fire via edinger westphal. Both of them terminate at the lateral geniculate nucleus of the thalamus. At the termination in the occipital lobe, the origingal image. L visual field projects to the r occipital lobe. Lower half of visual field is on the upper part of the visual. Peripheral vision maps to the more anterior part of the visual cortex. Central vision (macula) maps to the more posterior part of the visual cortex (occipital pole) Optic radiations convey image to the calcarine sulcus of the occipital lobe. Bottom half of the visual field goes to the cuneate (above the calcarine. Top half of the visual field goes to the lingual (below the calcarine sulcus) sulcus)