CAPS 390 Lecture Notes - Lecture 13: Central Nervous System, Peripheral Nervous System, Central Sulcus
18 Nov 2015
School
Course
Professor
Document Summary
Lecture 13 nerve i, oct 01, 2014 (dr. viau) Overview: the neuron is the functional cell of the nervous system that transmits this information. Therefore neurons have unique features that allow them to perform this function: nervous tissue develops from ectoderm, the outer primary germ layer of the embryo (see. Central nervous system: consists of brain and spinal cord, made up of: Grey matter = neuronal cell bodies, dendrites, unmyelinated axons. Somatic sensory nerves carry information that is consciously perceived. Somatic motor nerves carry information that leads to voluntary skeletal muscle contraction. Consists of single neuron connection: autonomic/visceral portion of pns. Sensory nerves receive unconscious "propioceptive" (ie. regarding position of body in space) information. Motor nerves carry information that leads to the contraction of involuntary smooth and/or cardiac muscle, as well as the stimulation of the secretion of a number of glands. Consists multiple neuron connections in the periphery outside the cns (i. e. synapses occur in peripheral autonomic "ganglia")
