cranial 2 Flashcards
1
Q
what classification is it
A
special sensory (photoreceptors detects light intensity and colours = visual)
2
Q
What is the foramen of the optic nerve
A
Optic canal
3
Q
What is the CNS nucleus
A
lateral geniculate nucleus (LGN)
4
Q
How does visual info get passed on
A
light converts into electrical signal via retina => visual info from the nasal retina cross over to opp side via the optic chaism and then it goes to the thalamus/LGN via optic tract which relays this info to the visual cortex (occipital lobe) and is integrated there
5
Q
Lesion can cause
A
complete and partial loss vision
6
Q
What is the point of cross over called
A
optic chiasm
