ANTH 1103 Study Guide - Midterm Guide: Axon Hillock, Central Nervous System, Hypothalamus

• School: Mount Royal University
• Department: Anthropology
• Course: ANTH 1103
• Professor: Catherine Prowse

Document Summary

Each neuron has: nucleus, cell body (soma): Information gets sent to the cell by other neurons through the dendrites: axons: Carries information away to other parts of the body: axon terminals: Information gets sent out these terminals to the other cells: synapse: Clean up chemicals leftover from neuron processes. Also involved in the information processing process. Main purpose is to separates extracellular fluid from intracellular fluid. It"s semi-permeable: o(cid:373)e (cid:272)he(cid:373)i(cid:272)als (cid:272)a(cid:374) pass through the (cid:373)e(cid:373)(cid:271)ra(cid:374)e a(cid:374)d so(cid:373)e (cid:272)a(cid:374)"t. In the process of moving chemicals around it creates an excess of positive charges outside the cell membrane. Which creates negative resting state of cell (approx. It"s the ele(cid:272)tri(cid:272)al differe(cid:374)(cid:272)e that: permits action potential (originates at axon hillock) where cell body joins axon. Opens up ion channels for sodium (which had been pumped out of the cell) The massive jump in positive ions is called the action potential. Slight stimulation will not create a response (threshold)