HKIN 215 Lecture Notes - Lecture 4: Spinothalamic Tract, Observational Learning, Globus Pallidus
Document Summary
Outline: the neuron, general structure, types and functions. Central nervous system (cns: brain, spinal cord, gray and white matter, ascending and descending tracts, motor units and recruitment. Objectives: describe the general structure of a neuron and the types and functions of neurons. Identify and describe the components of the cns and their function in the control of movement: describe grey and white matter. Identify and describe the two tracts in the white matter of the spinal cord: describe a motor unit and the recruitment of motor units. Neuron: receives and transmits information, building blocks of the cns, approximately 86 billion in the brain, also referred to as nerve cells. Contains the nucleus (with dna and typical nuclear organelles: where signals passed from dendrites are joined and passed on, no active role in transmitting neural signal, maintains the cell and keeps the neuron functional. Integrates incoming signals and generates outgoing signal to axon.
