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Title: structure and function of neurones
Description: a level an undergrad students who need to know about neurones. outlines the structure and functions of three different types of neurones and their roles within the nervous system.
Description: a level an undergrad students who need to know about neurones. outlines the structure and functions of three different types of neurones and their roles within the nervous system.
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The structure
and function of
neurons
Controls systems
Humans have 2 control systems the nervous system
and the endocrine system
...
g
central NS to the organs
and muscles in the body
...
g
the gaps
What things do
Dendrites-
large SA to carry out there function
of connecting with other neurons and carry
nerve impulses towards the cell body
...
Synaptic terminals- These are at the end of
the Axon and do not actually touch the other
neuron there is a gap e
...
Other types of Neuron
Sensory
neurons- carry messages from the
receptors in the body e
...
g
central NS
...
These receive messages from
sensory neurons and pass them to either
other interconnecting neurons or motor
neurons
...
Neurotransmitters such as dopamine and
serotonin can either influence the post
synaptic neuron to respond in an
inhibitory way ( decrease the firing of a
cell) or excitatory way ( increase firing on
a cell)
Motor neuron
Interconnecting
neuron
Sensory
neuron
Function
Carries
messages from
the central
nervous system
to effectors e
...
Carries
messages
from
peripheral
nervous
system to
CNS
Length of fibers
Short dendrites Short dendrites
Long
and long Axons either long or short dendrites
axons
and short
axons
Reflex arch
A
stimulus
Receptors in the PNS convey a message
along a sensory neuron
...
Then the message is transferred to a
motor neuron attached to an effector e
...
Interconnecting
neuron
Transfers messages from a
sensory neuron to another
interconnecting neuron or motor
neuron, short dendrites and
either long or short axons
...
Has long dendrites
and short axons
Title: structure and function of neurones
Description: a level an undergrad students who need to know about neurones. outlines the structure and functions of three different types of neurones and their roles within the nervous system.
Description: a level an undergrad students who need to know about neurones. outlines the structure and functions of three different types of neurones and their roles within the nervous system.