Physiology 1021 Study Guide - Final Guide: Lamellar Corpuscle, Lateral Geniculate Nucleus, Primary Motor Cortex

• School: Western University
• Department: Physiology
• Course: Physiology 1021
• Professor: John Ciriello

Document Summary

Posterior caudal (behind or towards the back) Two cerebral hemispheres divided by the sagittal fissure (midline) The most primitive part of the brain. Concerned with life functions respiration, body temperature. Conduit for information to and from the brain. Each segment has a pair of spinal nerves (one left, one right) The spinal cord has five regions, with different numbers of spinal segments: Pupil constriction, blood pressure, sweating, crying, salivation, gi tract paristalsis, etc. Usually refers to bringing sensory information to the cns. Usually refers to taking motor information from the cns, to a motor target. Because info coming through the cranial nerves - direct off the brain- not the spinal cord. In addition to the 31 pairs of spinal nerves, there are also 12 pairs of cranial nerves- come directly off the brain. They take car of function- sensory and motor int eh head. Cerebrospinal fluid csf- shock absorber- comes from ventricular system.