Pathways

Question 1

Order of visual?

Answer 1

Cornea -> aqueous humor of anterior segment -> lens -> vitreous humor of posterior segment -> retina -> photoreceptors -> bipolar cells -> ganglion cells -> optic nerve -> optic chiasm -> optic tract -> thalamus -> primary visual cortex (occipital lobe)

Question 2

Order of auditory?

Answer 2

Auricle -> external auditory meatus -> tympanic membrane -> malleus -> incus -> stapes -> oval window -> spiral organ -> cochlear nerve -> medulla -> inferior colliculus -> thalamus -> primary auditory cortex (temporal lobe)

Question 3

Order of olfactory, up to split?

Answer 3

Olfactory receptor cells -> olfactory nerve -> olfactory bulb -> olfactory tracts

Question 4

Order of olfactory tract to identify smells?

Answer 4

Olfactory tract -> thalamus -> olfactory cortex

Question 5

Order of olfactory tract for emotional responses to odors?

Answer 5

Olfactory tract -> hypothalamus -> amygdala -> limbic system

Question 6

Order of gustatory pathway?

Answer 6

Gustatory hair cells -> cranial nerves (facial, glossopharyngeal, and vagus) -> medulla oblongata -> thalamus -> gustatory cortex (in insula cortex) -> hypothalamus/amygdala/limbic system