Transcript Brushing Hair

Brushing Hair
Tracing The Transmission of
Nerve Impulses Through The
Body
 Brushing
hair
begins with a
visual stimulus.
Most of the time,
you will notice
that your hair is
not the way you
like it. So, you get
the feeling to
brush your hair to
make it the way
you want it.
Stimulus
A stimulus is something that
human sensory receptors are
able to detect.
http://www.doctortee.com/dsu/tifti
ckjian/bio101/sensory-systems.html
 From
the
stimulus, the
signal is then
transferred from
the branches as
seen in the
picture to the left
and is now
traveling to the
sensory receptor
and the signal is
received by the
sensory neuron.
Sensory
Receptors
These are located all over the
body, but some types of
receptors are in specific areas
of the body. Example: Taste
receptors are located in the
mouth.
http://video.ecb.org/badger/download/vl
c/animations/thumbs/Neuron_types_.jpg
 These
transmit
information from
the sensory
receptors to the
Central Nervous
System, the
Brain. Telling the
brain that the
muscles in the
arms and fingers
need to be used
to brush the hair.
Sensory
Neurons
Converts external stimuli from
the environment to internal
stimuli.
http://theathletescorner.com/?p=75
 The
information
received from
the Sensory
Neurons is further
transmitted by
relay neurons
within the C.N.S.
Once the
information of
brushing your
hair reaches the
C.N.S., it is then
processed by
the brain.
Central
Nervous
System
Part of the nervous system that
integrates the information that
it receives from, and
coordinates the activity of, all
parts of the bodies of bilateral
animals.
http://www.mindcreators.com/Neuro
nBasics.htm

Starting with the axon,
the neuron sends an
electrical impulse of
data through the arms.
The axons sends
information to the
dendrite of another
neuron through the
synapses. Once
another neuron
receives this impulse,
the dendrites send this
information to the
nucleus of the neuron
and then send more
information down its
axon all to be
processed again by
the next neuron.
Neuron
A cell that can process and
transmit information by
electrical and chemical
signaling.
http://www.integrativepsychiatry.net
/neurotransmitter.html

These are located
at the bottom of
the axon of a
neuron. They are
packaged into
synaptic vesicles
clustered beneath
the membrane on
the pre-synaptic
side of the
synapse and are
released into the
synaptic cleft,
where they bind to
receptors in the
membrane on the
postsynaptic side
of the synapse.
Neurotransmitter
Endogenous chemicals that
transmit signals from a neuron
to a target cell across the
synapse.
http://www.dmacc.edu/instructors/rb
wollaston/Chapter_8_Nervous_System.
htm
 The
information
received by the
C.N.S. has now
gone through
the motor
neuron which is
now sending
information to
effectors like the
muscles required
to move the
arms in a hair
brushing fashion.
Motor
Neuron
Neurons located in the C.N.S.
that project their axons outside
the C.N.S. and can directly or
indirectly control muscles.
http://www.art.com/products/p14443752-sai3041618/biceps-muscle-movement-armlifting.htm
 The
information
sent by the
motor neuron
has been
received by the
effector and the
muscles in the
arms and hands
are contracting
and are now
brushing your
hair.
Effector
A nerve ending that carries
impulses to a muscle or organ
and activates muscle
movements.
The End
By: Jacob Sander