BMS 870 Lecture Notes - Lecture 8: Paul Broca, Myelin, Grey Matter

• School: Ryerson University
• Department: Biomedical Sciences
• Course: BMS 870
• Professor: Marie Killeen

Document Summary

Neuroscie(cid:374)ce co(cid:374)siders (cid:448)arious aspects of hu(cid:373)a(cid:374) (cid:374)ature: curiosity, pai(cid:374), pleasure, (cid:373)o(cid:448)e(cid:373)e(cid:374)t a(cid:374)d studies the nervous system. Brain vital to life (trepanation - skull surgeries) Ancient egypt thought = seat of soul and memory. Ancient greece - correlation between structure and function; brain as seat of intelligence + involved in sensation. Roman empire - physician galen: cerebrum, cerebellum, ventricles. Renaissance - 17th century: brain as machine; fluid-mechanical theory of brain function (body fluid pumped from ventricles); descartes: philosophical mind-brain problem. 17th-18th century - gray matter and white matter. 18th century - gross anatomy detailed: gyri, sulci, fissures; central subdivision + peripheral subdivision. However, in pns, as long as myelin sheath is present (ex. During damage in the lower calf), the new nerve will be able to grow out. The stuff that"s ahead is (cid:374)ot useful so the (cid:374)er(cid:448)es gro(cid:449) fro(cid:373) the stu(cid:373)p out(cid:449)ards. The problem in the cns is that it"s (cid:448)ery difficult to restore (cid:374)er(cid:448) syst fu(cid:374)ctio(cid:374).