PSYB65H3 Chapter Notes - Chapter 3: Cerebrospinal Fluid, Axon Hillock, Neuroglia
Document Summary
Camillo golgi: believed that the nervous system is composed of a network of interconnected fibers and that information flowed through this network to produce behaviour. Neurons are information-processing units of the nervous system: acquire information from sensory receptors, pass information on to other neurons, make muscles move to produce behaviours. Dendritic spine: protrusion from a dendrite that greatly increase the dendrite"s surface area and is the usual point of dendritic contact with the axons of other cells. Axon hillock: a juncture of soma and axon where the action potential begins. Axon collateral: the branch of an axon. Terminal button (end foot): the knob at the tip of an axon that conveys information to other neurons. Synapse: the junction between one neuron and another that forms the information-transfer site between neurons. Sensory neurons: a neuron the carries incoming information from sensory receptors into the spinal cord and brain: bipolar neuron: a sensory neuron with one axon and one dendrite.
