PSYC 1010 Chapter Notes - Chapter 3: Allele Frequency, Hans Selye, X-Ray

• School: York University
• Department: Psychology
• Course: PSYC 1010
• Professor: Myriam Mongrain

Document Summary

Dendrites: specialized parts of a neuron that receive information from other neurons: many dendrites together make a dendritic tree. Diversity of neurons: ex. some neurons have multiple or no axons. Glia: cells found throughout the nervous system that provide various types of support for neurons. Much smaller than neurons, but outnumber them 10:1 suppl(cid:455) (cid:374)ou(cid:396)ish(cid:373)e(cid:374)t to (cid:374)eu(cid:396)o(cid:374)s, (cid:396)e(cid:373)o(cid:448)e (cid:374)eu(cid:396)o(cid:374)s(cid:859) (cid:449)aste, p(cid:396)o(cid:448)ide i(cid:374)sulatio(cid:374) a(cid:396)ou(cid:374)d axons, orchestrate development of nervous system in human embryo: myelin sheaths derived from special types of glial cells. New research suggests that glial cells play a role in sending and receiving chemical signals and may be implicated in diseases like amyotrophic lateral sclerosis (als) a(cid:374)d pa(cid:396)ki(cid:374)so(cid:374)(cid:859)s disease. Bulk of neural communication still handled by neurons impaired-glial communication may play a role in schizophrenia. Alan hodgkin and andrew huxley did experiments with axons from squids (because they"re larger than human axons = easier to study: inserted microele(cid:272)t(cid:396)odes i(cid:374)to the s(cid:395)uid(cid:859)s a(cid:454)o(cid:374)