Nervous System Flashcards
Function of Nervous System
to detect impulses from the senses; control center of the body
Major Organs of Nervous System
Brain, Spinal Cord, Senses, Nerves
Difference between Neurons and Neuroglia
Neurons make up 10% of the nervous system and Neuroglia make up 90% of the nervous system
Dendrite
receive the nerve impulses from the senses or another neuron
Soma
body of the neuron that holds the nucleus
Schwann Cells
passageway for nerve impulses after cell body; end in axon terminal
Node of Ranvier
impulses jump from node to node, which increase speed of impulse
Myelin
insulates the axon. Produced by the Schwann cells
Axon
passageway for nerve impulses after cell body; end in axon terminal
Axon Terminal
the button-like endings of axons through which axons make contact with other nerve cells.