Psychology 1000 Lecture Notes - Lecture 4: Myelin, Pineal Gland, Reflex Arc

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Stimuli transferred from periphery to brain and reflected back. Pineal gland - where the gases went, site where divine intervention occurred. Actually controls hormones and is in centre of brain. Puts frog leg into circuit and jerk happens but no increase in volume from hydraulics. Specific nerve energy - thought brain determined different kinds of nerves depending on function. He knew that the impulses weren"t instantaneous, even if his numbers were wrong. Dendrites (10000) (receiving station for neuron), branching off from cell body. Axon terminals/synaptic knobs (little swellings in branched out after axon, communication happens here) Myelin sheath (coats some axons, gives them faster transmission time, acts as an insulator to help axon not lose signal) Two poles, one is dendrites only and the other is the axon. Cell body squished in different directions, still one axon coming down from bottom. Cells in higher functioning structures like brain use these, good for gathering.