PSYA01H3 Chapter Notes - Chapter 3: Brainstem, Resting Potential, Neuroglia
Document Summary
3. 2 how the nervous system works: cells and. Neurons: one of the major types of cells found in the nervous system, that are responsible for sending and receiving messages throughout the body. Receive input from one grp. of neurons. Structures: cell body (a. k. a soma) contains the nucleus which has the cell"s dna (the genes in the cell make proteins that allow the neuron to function, dendrites. Small branches that radiate from the cell body. The activity goes from the axon hillock to the axon a tail-like structure that protrudes from the cell body. Transports info in form of electrocr from cell body to end of neuron (as the impulse travels down the axon, it stimulates the release of nts: axon terminals the end of the axon, where the activity reaches. Bulb-like extensions filled with vesicles that contain neurotransmitters: neurotransmitters. Receive info from the bodily senses and send it toward brain and spinal cord: motor neurons.
