NERVOUS SYSTEM PART I: Neurons Axons, Dendrites, & Cell Bodies: Dendrites The are the short processes that extend out from the cell body. They usually out’. This is the part of the neuron that conducts an ‘branch impulse TOWARDS the cell body. Cell Body The contains the nucleus and therefore maintains the cell. Axon The is the long process that extends out from the cell body. It is the part of the neuron that conducts an impulse AWAY from the cell body. Neurons: There are three types of neurons (Sensory neurons, Interneurons, and Motor neurons) REFLEX ARC. One of each of neurons makes up the The reflex arc is the basic functional unit of the nervous system. A somatic reflex arc is one in which there is the simplest possible arrangement of elements to permit a response to stimuli, and in which the final element in the chain is skeletal muscle. In the crude sketch given here, you see the basic elements of this system:
NERVOUS SYSTEM PART I: Neurons Axons, Dendrites, & Cell Bodies: The Dendrites are the short processes that extend out from the cell body. They usually ‘branch out’. This is the part of the neuron that conducts an impulse TOWARDS the cell body. The Cell Body contains the nucleus and therefore maintains the cell. The Axon is the long process that extends out from the cell body. It is the part of the neuron that conducts an impulse AWAY from the cell body. Neurons: There are three types of neurons (Sensory neurons, Interneurons, and Motor neurons) One of each of neurons makes up the REFLEX ARC. The reflex arc is the basic functional unit of the nervous system. A somatic reflex arc is one in which there is the simplest possible arrangement of elements to permit a response to stimuli, and in which the final element in the chain is skeletal muscle. In the crude sketch given here, you see the basic elements of this system:
nervous_system___brain_notes.docx