PS263 Study Guide - Midterm Guide: Cranial Nerve Nucleus, Basal Forebrain, Dorsal Root Ganglion
Document Summary
Bell-magendie law: con rms dorsal, and ventral traveling of info system and that nerve impulses are conducted in only one direction in each case. Pns connects the brain and the spinal cord to the rest of the body. Sns consists of the axons conveying messages from the sense organs to the cns and from the cns to the muslces. Typical disorders when the spinal cord is damaged. Paralysis and sensory loss: occurs following a complete transection of the spinal cord; symptoms depends on level of lesion. 12 types of cranial nerves: olfactory nerve (smell) - sensory, optic; vision (extension of diancephylon; only one covered by oligiodendrocites) sensory in) motor, oculomotor movement of the eye (up and. Trochlear- movement of eye (down and in) - Facial- concerned with facial expressions, lips, 2/3 of tongue - motor & Vestibulochlear (aka statoacoustic)- made up of 2 nerves; one with hearing. Oh oh oh to touch and feel girl"s veil such happiness (12 nerves)
