HHB 3.4 Nervous System & Neurotransmitters Flashcards

Front

Dendrites

Back

receive electrical impulses from other neurons

Front

Cell body

Back

part of the neuron where the nucleus if located

Front

Axon

Back

part of the neuron that conducts electrical impulses away from the cell body

Front

Effectors

Back

term used to describe muscle and glands

Front

Direction an electrical impulse moves through a neuron

Back

dendrite > cell body > axon

Front

Structure which insulates the axon of a neuron

Back

myelin sheath

Front

Structure which increases the speed of impulse conduction

Back

myelin sheath

Front

Glial cells

Back

produce the myelin sheath and support neurons

Front

Synapse

Back

junction between neurons

Front

Vesicles

Back

structures which contain neurotransmitters.

On arrival of an electrical impulse they move and fuse with the cell membrane of the pre-synaptic neuron and release the neurotransmitters into the synaptic cleft.