structure and function of sensory, relay and motor neurones Flashcards
neurones enable
communication within the nervous system
the cell body (soma) contains
the genetic material
what extends from the cell body
dendrites
dendrites carry
functional information towards the cell body
dendrites receive
information from other neurones
axons carry
messages away from the cell body
how can impulse transmission be increased
through myelination of the axon
allows for saltatory conduction between nodes of ranvier
axon terminal make
synaptic connections with other cells
axon terminals contain
neurotransmitters
which neurone only transmits impulses (unipolar)
sensory neurones
whats specific about sensory neurones
cell body sticks out
whats specific about relay neurones
no myelination
whats specific about motor neurones
textbook neurone
where are relay neurones found
in brain and spinal chord only
where do sensory neurones begin
at sensory receptors to the brain and spinal chord
where do motor neurones begin
in the cns to other areas of the body (effectors)
