BIOL 469 Chapter 2: Nerve Cells, Neural Circuitry and Behavior part 2
Document Summary
Dendrites receives electrical signals and axon transmits signals to other cells. Variants of bipolar cells that carry somatosensory info to spinal cord. Receptor neurons that convey a. touch, pressure, and pain signals to the spinal cord. 2 processes of embryonic bipolar cell fuse and emerge from cell body as single process with 2 diff segments a. b. Pyramidal- roughly triangular cell body, found in hippocampus and throughout cerebral cortex. Purkinje- of cerebellum, characterized by rich and extensive dendritic tree that accommodates an enormous synaptic input b. c. Have oval soma giving 2 diff processes a. b. Many sensory cells are bipolar; retina and olfactory epithelium of the nose. Dendritic structure that receives from periphery of the body axon that carries info toward cns. Carry info from peripheral sensors into nervous system for perception and motor coordination. Carried toward cns, applies to all info even if not sensory. Sensory applied only to afferent inputs that lead to perception.
