BIO271H1 Midterm: BIO271H1 2014 MIDTERM NOTES - section 1 (Lectures 1-6).pdf
Document Summary
Lecture 1: organization of the nervous system. Cns : brain and spinal cord. Pns : nerves innovating tissues of the body. Hippocampus: responsible for episodic memory, can still learn long term things (unconscious about it) Neurons are excitable cells that can transmit electrical signals over long distances. Purkinje cells: output neurons of cerebellum (coordinates motor) has dendritic arbor (tree) Action potential: how neurons transmit information to long distances. Cell body of motor and purkinje cell is closer to the dendrites; sensory neuron cell bodies are in another place. Signal integration zone/axon hillock: where ap is generated (on axon hillock) end of the cell body. Glial cells are also important in the nervous system. Dendrites are not just simple processes covered in small protrusions (knobs) Spick initiation zone: region most likely to generate an. Neural zones: neurons communicate directly with other cell types as well: To differentiate between an axon and dendrite, you need a fluorescent label of an antibody.
