HLSC 2465U Lecture Notes - Lecture 5: Intercalated Disc, Sciatic Nerve, Nervous Tissue
Document Summary
Involved with the nervous system: striations resemble the actin and myosin moving, skeletal muscle is the longest out of the muscle types, nuclei sit on the edge of the tissue. Smooth involuntary muscle other for contraction: blood vessels, big muscles, bowels for peristalsis, one long/oval shaped nuclei, shortest of the muscle types, consist of tapered ends, arranged closely dove tailing , function: moves substances through the organs. Nervous tissue: conducts stimuli, main cell is the neuron, support cells are glial cells. Neuroglia: macroglia and microglia, astrocytes, bbb separating systemic blood from cns, chemo can"t go through and kill cancer cells because of the. Bbb: ependymal, high cuboidal or low columnar, have cilia and some microvilli. September 27, 2018: form csf (microvilli helps absorb it, microglia. Cerebrum: memory, processing, verbal communication, learning, gray matter nucleus, cell bodies, white matter looks granier, no cell bodies, but has axons, both have glial cells.
