Vision Flashcards
3 layers of the retina
Superficial, Middle, Deepest
Cells in the superficial layer of the retina
Photoreceptors
Cells in the middle layer of the retina
Interneurones
Cells in the deepest layer of the retina
Cells from the magnocellular and parvocellular ganglia
2 types of photoreceptors
Rods and cones
Function of rod cells
Peripheral and night vision
Function of cone cells
High acuity and colour vision
Path from retina to the lateral genitculate nucleus
Optic nerve, through optic chiasm, then optic tracts
Fibres that dessucate in the optic chiasm
Nasal
Fibres in the optic tracts
Ipsilateral temporal fibres, Contralateral nasal fibres
Vision modalities carried by the magnocellular path
Motion vision, Identify where objects are
Vision modalities carried by the parvocellular path
Fine detail, colour vision
Path from the lateral genitculate nucleus to the visual cortex
Optic radiations
2 pathes of optic radiations
Temporal (Meyer’s) loop, Parietal (Baum’s) loop
Visual fields carried in the temporal (Meyer’s) loop
Superior