40-47 Flashcards
▪ Bundle of axons that exit the back of the eye carrying
impulses from the retina
Optic nerve
Location where the optic nerves cross
▪ Fibers from the medial side of each eye cross over to
the opposite side of the brain
Optic chiasma
Contain fibers from the lateral side of the eye on the
same side and the medial side of the opposite eye
▪ Synapse with neurons in the thalamus
Optic tracts
Contain fibers from the lateral side of the eye on the
same side and the medial side of the opposite eye
▪ Synapse with neurons in the thalamus
Optic tracts
Axons from the thalamus run to the occipital lobe
▪ Synapse with cortical cells, and vision interpretation
(seeing) occurs
Optic radiation
Summary of the pathway of impulses from the
retina to the point of visual interpretation
- Optic nerve
- Optic chiasma
- Optic tract
- Thalamus
- Optic radiation
- Optic cortex i
Each eye “sees” a slightly different view
▪ Field of view overlaps for each eye
Visual fields