ANP 1106 Study Guide - Midterm Guide: Temporal Bone, Cochlear Nerve, Hypoglossal Nerve

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Document Summary

Eye mover & supplies 4/6 extrinsic eye muscles. Parasymp. to iris & lens; pupil size, focus. Olfactory epithelium of nasal cavity through ethmoid bone to olfactory bulb. Fibers of olfactory bulb neurons extend as olfactory tract to primary olfactory cortex. Fibers from retina form the optic nerve; pass through optic foramen; optic nerves converge forming optic chiasma ( bers partially cross over) enter thalamus as optic tracts then to occipital cortex as optical radiation. From ventral midbrain through bony orbit to eye. From dorsal midbrain & course around midbrain to enter orbit through orbital ssure. Bers to superior oblique muscle, loops through pully-shaped ligament. Sensory: transmit afferent impulses from touch, temp & pain receptors. Conveys sensory impulses from ant. scalp, upper eyelid, nose, nasal cavity, cornea, lacrimal gland. Conveys sensory impulses rom nasal cavity, palate, upper teeth, cheek skin, upper lip, lower eyelid. Conveys impulses (sensory) from ant. tongue, lower teeth, temp. region of scalp.