Physiology 1021 Lecture Notes - Lecture 6: Peripheral Nervous System, Autonomic Nervous System, Central Nervous System

• School: Western University
• Department: Physiology
• Course: Physiology 1021
• Professor: Sarah Mc Lean

Document Summary

Cns central nervous system: brain, spinal chord. Pns peripheral nervous system: somatic system spinal nerves, visceral system (autonomic nervous system, parasympathetic, sympathetic. Views of the brain: dorsal above, ventral below, lateral side, medial (midline) Posterior caudal (behind or towards the back) Medial (towards the middle or midline) Common layout of the brain among mammals. Cerebrum cerebral cortex: tow cerebral hemispheres divided by the sagittal fissure (midline, concerned with contralateral sensation and movement. Cerebellum: also has two hemispheres, concerned with ipsilateral motor control. Brain stem: most primitive part of the brain, concerned with life functions respiration, body temperature. Spinal chord: conduit for information to and from the brain, sensory and motor losses following section. Hindbrain: cerebellum and pons, medulla arrow is dorsal, bridge is ventral and side is dorsal. Grey matter is where the cell bodies of the neurons reside. M(cid:455)eli(cid:374) is (cid:449)hat (cid:373)akes the (cid:449)hite (cid:373)atter (cid:862)(cid:449)hite(cid:863) White and grey matter are both visible.