ANP 1106 Lecture Notes - Lecture 13: Lateral Rectus Muscle, Primary Olfactory Cortex, Olfactory Bulb

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jacqueline Carnegie

Document Summary

12 pairs of cranial nerves pass through various foramina of the skull first two pairs attach to forebrain; rest originate from brain stem. All except vagus nerve serve only head & neck structures. Except those for special sense organs, most cranial nerves are mixed nerves (cid:862)on occasion, our trusty. Some say marry money but my brother says (it"s(cid:895) Fibers of olfactory bulb neurons extend as olfactory tract to primary olfactory cortex. Fibers from retina form optic nerve which passes through optic foramen of orbit. ); then as optic tracts to thalamus, finally as optical radiation to occipital cortex. Oculomotor nerves: (cid:862)e(cid:455)e (cid:373)o(cid:448)er(cid:863); supplies 4/6 e(cid:454)tri(cid:374)si(cid:272) (cid:373)us(cid:272)les of eyeball. Fibers from ventral midbrain (near pons) through bony orbit to eye. Mixed motor nerves to extrinsic eye muscles, but also paraymp fibers to iris, lens & (sensory afferents from extrinsic eye muscles to midbrain) Innervates ext eye muscle that loops through pulley-shaped ligament in orbit.