BIO 203 Lecture Notes - Lecture 11: Fourth Ventricle, Arachnoid Mater, Ependyma
7 Aug 2018
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Introduction to the central and peripheral nervous systems. Innervation to all your skeletal muscles: autonomic motor, anything that isn"t your skeletal muscles, sympathetic, parasympathetic. Cellular constituents of the cns: neurons, glia (neuroglia, ratio of neuroglia to neurons: = 10:1, aren"t excitable tissue, three types of glia, astrocytes, help to maintain and control the chemical environment surrounding neurons. Cns: choroid plexus makes about 500ml/day, we need an outlet for it since we make more than we consume. If you have dysfunction of these arachnoid granulations, this could lead to hydrocephalus. Integrating vestibular input and maintain upright posture (orthostasis: detection of motor error, concept: adjustments that occur in real time, planning and coordinating movements, that is the difference between an intended movement and an actual movement, motor learning. If you have damage to your cerebellum, you can"t do something as simple as track a line on the screen.
