NROB60H3 Chapter Notes - Chapter 7: Spinal Nerve, Pia Mater, Cranial Nerves
13 Dec 2016
School
Department
Course
Professor
Document Summary
Bilateral symmetry: both halves of the brain are identical. Medial: close to the midline (in case of brain, mlf) Ipsilateral: same side of each other: eg. Midsagittal plane: slice brain through mlf (right and left sections) Saggital plane: cut in same direction but miss mlf. Horizontal plane: slice separates into top and bottom. Coronal plane: slice separates into front and back. Cerebrum: divided into two cerebral hemispheres, it is the largest part of the brain: works contralaterally (left side receives input from right side of body) Cerebellum: smaller (cid:498)brain(cid:499) behind the cerebrum: mainly movement, connects spinal cord and cerebrum, ipsilateral. Brain stem: nexus of fibers and cells: regulates vital functions breathing, temperature. If severed, brain cannot control body problem! Spinal nerves: used to communicate with body: dorsal root: axons bring input into spinal cord, ventral root: carries info away from spinal cord (response) Motor neurons axons in pns, somas in cns. Autonomic pns (or visceral pns) internal organs, glands involuntary.
