MD Lesson 2.1-2.3 Vocab

Front

Part of the nervous system that includes nerves, excluding the brain and spinal cord.

Back

peripheral nervous system

Front

Part of the nervous system including brain and spinal cord.

Back

central nervous system

Front

Bundle of neurons.

Back

nerves

Front

Nerve cells that receive external stimuli and transmit signals to the central nervous system.

Back

sensory neurons

Front

Nerve cells that transmit signals from the brain/spinal cord to muscles/glands.

Back

motor neurons

Front

A nerve cell that transmits signals.

Back

neuron

Front

A branch from a neuron that receives signals from another neuron.

Back

dendrites

Front

Long extension from a nerve cell for signal travel.

Back

axon

Front

A fatty substance that surrounds the axon and speeds up signal travel.

Back

myelin

Front

Gap between branches from a neuron's axon sending signals to the next neuron.

Back

synapse