PS101 Chapter Notes - Chapter 3: Distant Relatives, Endocrine System, Michael Gazzaniga
Document Summary
Ps101 chapter 3: the biological bases of behaviour. Language, reasoning, consciousness & many human qualities and characteristics separates us from other mammals. Cells in the nervous system have 2 types: 1) glia 2)neurons: neurons individual cells in the nervous system that receive integrate and transmit info. Mainly only communicate only with other neurons. Some receive signals from outside the nervous system. Carry messages from nervous system to muscles. Soma (cell body) contains the cell nucleus & other organelles. Have a # of branched structures called dendritic trees each branch called dendrite. Dendrites parts of neuron specialized to receive info. Most neurons receive info. from many other cells. Axon a long thin fibre that transmits signals away from the soma to other neurons or to muscles or glands. May branch off to communicate with a # of other cells. Axons wrapped in cells with a high [] of a white, fatty substance called myelin.
