BIOL373 Study Guide - Final Guide: Dorsal Root Ganglion, Choroid Plexus, Subdural Hematoma
13 Dec 2017
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Homeostasis maintenance of relatively stable internal environment. Long range endocrine: chemical hormone released into bloodstream and distributed. Target cell: has receptors for specific signal for response. Recall: gpcr; active when subunits are apart aka galpha bound to triphosphate. Built in gtpase activity will break down the triphosphate to turn gpcr off. Cholera invades and disrupts the gtpase activity; leaving gpcr active. Higher class cephalization, more emphasis on fore brain. Neural plate convergence neural tube forms central nervous system neural crests migrate throughout body and contribute to pns. Subdural hematoma brain bleed between dura mater and arachnoid layer. Csf secreted by choroid plexus vascular. ependymal cell makes decisions of what ends up on csf csf fills ventricles continuous; good indicator of cns pathology. Astorcytes numerous in brain; regulate local ecf by releasing fluids. Csf is removed and replaced 4 times a day cleaning out metabolites and toxins. Together, the (cid:272)horoid ple(cid:454)us produ(cid:272)es (cid:1009)00(cid:373)l if c f fluid dail(cid:455).
