PSYB65H3 Chapter Notes - Chapter 3: Axon Hillock, Neuroglia, Sensory Neuron
Document Summary
Cells use proteins to orchesting the behaviour. Nvs cells are small , packed tightly and have jelly like consistency. Cajal"s neuron theory: that neurons are the nervous systems functional units. Axons: core region : cell body or soma, dendrites: tree: collect info from other cells, axon, 86 billion neurons. Neural network: functional group of neurons that connects wide areas of brian and spinal cord. Structure and function of neuron: dendritic spines: typical point of dendritic contact with axon of other cells, axon hillock, axon collateral: branch of axon, terminal button: convey info, synapse. Sensory neuron: simple in structure, bipolar neuron: retina of eye, somatosensory neuron: being info from body to spinal cord, afferent. Interneurons: association cells, connect motor and sensory neurons, star shaped: stellate cell, pyramidal cells: pyramid shape found in cerebral cortex, purkinje cell: extreme dendrites, fan shape : in cerebellum. Info from brain and spinal cord to muscles (motor: efferent.
