PSYC 1000 Chapter Notes - Chapter 3: Axon Terminal, Peripheral Nervous System, Myelin

• School: Memorial University
• Department: Psychology
• Course: PSYC 1000
• Professor: Elizabeth Russell

Document Summary

Neuron: a nerve cell: fundamental building block of the nervous system. Communication among neurons is essential for normal brain and spinal cord functioning. Peripheral nervous system: runs through the rest of our bodies (besides the brain and spinal cord, made of neurons also. Neurons have specialized structures that allow them to communicate with other neurons: use electrical and chemical signals. Glia are also found in the nervous system. About 86 billion in the human brain. Have a cell body filled with cytoplasm. Have a nucleus: residence of dna and rna. Organelles that allow the neuron to make proteins and other molecules, produce energy and permit the breakdown and elimination of toxic substances: make it possible for neurons to live and function. The parts of the neuron that receive input from other neurons. Some have (cid:271)ig de(cid:374)drite (cid:862)trees(cid:863) (cid:449)hi(cid:272)h allo(cid:449) a (cid:374)euro(cid:374) to re(cid:272)ei(cid:448)e a lot of i(cid:374)put from other neurons: axon.