PSYCH 212 Lecture Notes - Lecture 2: Axon Hillock, Somatic Nervous System, Peripheral Nervous System
11 Apr 2018
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Chapter 2- gi(cid:448)e(cid:374) diagra(cid:373) (cid:449)hat is this, or here"s a pi(cid:272) of (cid:271)rai(cid:374) a(cid:374)d (cid:449)here is (cid:271)la(cid:374)k (e(cid:454): cerebellum), know general function about structure. Cns: cns processes and integrates information, motor systems mediate reponses to sensory and stored information, motor nerves (efferent) transmit information from cns to effectors. Cells of the nervous system (muscles and glands: neurons, glial cells: provide structural, nutritional, and other types of support to the brain. Diversity of neurons: sensory neuron: respond to environmental stimuli such as light, odor, touch. Interneuron:not sensory or motoneuron, it receives input from and sends output to other neurons: motoneuron (motor neuron): large with long axons to stimulate muscles and glands. Multiple sclerosis- demyelinating disease: damaged myelin forms scar tissue, numbness to paralysis or loss of vision. Neural tissue: within cns (gray matter, nucleus- collection of neurons, cortex- layers of neurons, tract- bundle of axons (white matter, within the pns, ganglia- clusters of neurons, nerves bundles of axons.
