Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Nervous System
Document related concepts
Neuromuscular junction wikipedia , lookup
Donald O. Hebb wikipedia , lookup
Activity-dependent plasticity wikipedia , lookup
Artificial general intelligence wikipedia , lookup
Cognitive neuroscience wikipedia , lookup
Brain Rules wikipedia , lookup
Node of Ranvier wikipedia , lookup
Biochemistry of Alzheimer's disease wikipedia , lookup
Electrophysiology wikipedia , lookup
Caridoid escape reaction wikipedia , lookup
Mirror neuron wikipedia , lookup
History of neuroimaging wikipedia , lookup
Multielectrode array wikipedia , lookup
Neuroplasticity wikipedia , lookup
Neural coding wikipedia , lookup
Haemodynamic response wikipedia , lookup
Neuropsychology wikipedia , lookup
Nonsynaptic plasticity wikipedia , lookup
Axon guidance wikipedia , lookup
Central pattern generator wikipedia , lookup
Microneurography wikipedia , lookup
Neurotransmitter wikipedia , lookup
Biological neuron model wikipedia , lookup
Premovement neuronal activity wikipedia , lookup
Holonomic brain theory wikipedia , lookup
Optogenetics wikipedia , lookup
Clinical neurochemistry wikipedia , lookup
Neural engineering wikipedia , lookup
Synaptogenesis wikipedia , lookup
Metastability in the brain wikipedia , lookup
Molecular neuroscience wikipedia , lookup
Single-unit recording wikipedia , lookup
Feature detection (nervous system) wikipedia , lookup
Development of the nervous system wikipedia , lookup
Synaptic gating wikipedia , lookup
Channelrhodopsin wikipedia , lookup
Circumventricular organs wikipedia , lookup
Neuropsychopharmacology wikipedia , lookup
Neuroregeneration wikipedia , lookup
Nervous system network models wikipedia , lookup
Transcript
Nervous System
{
Use your gray matter!
Central Nervous System
Communication and
coordination system
of the body
Seat of intellect and
reasoning
Consists of the brain,
spinal cord, and
nerves.
Neuron
Nerve Cell
Neuron function:
transmit message
from one cell to the
next.
Dendrites
Nerve cell processes
that carry impulse to
cell body
May be one or many
Axon
Carries impulse
away from cell
body
Only one on a
neuron
Neurilemma (Myelin
Sheath)
Covering that speeds
up the nerve impulse
along the axon
Myelin is a fatty
substance that
protects the axon
Synapse- space
between neurons,
messages go from
one cell to the next.
Nerve Impulse
A stimulus creates an
impulse. → the
impulse travels into
the neuron on the
dendrite (s) and out
on the axon. At the
end of the axon, a
neurotransmitter is
released that carries
the impulse across the
synapse to the next
dendrite.
Different Neurons
Sensory Neurons Motor Neurons
AfferentEfferent
Associative
Neurons
Interneurons
Emerge from the
skin or sense
organs, carry
impulses to spinal
cord and brain
Carry impulses
from sensory
neurons to motor
neurons
Carry messages
from the brain
and spinal cord
to muscles and
glands
Divisions of the Nervous
System
Central Nervous Peripheral
System
Nervous system
Autonomic
Nervous System
Brain and
spinal cord
Includes peripheral
nerves and ganglia,
supplies heart muscle,
smooth muscle and
secretory glands,
involuntary action
Cranial nerves
and Spinal
nerves
The Brain-central nervous system
3 lb mass of soft nervous
tissue
100 billion neurons
Protected by the skull,
three membranes called
meninges, and
cerebrospinal fluid
Adequate blood supply is
needed, brain tissue will
die in 4-8 min. without O2
Divided into 4 major
parts: cerebrum,
diencephalon,
cerebellum, brain stem
Draw a picture of two
dendrites. Using the
bubble map show what
happens when a
stimulus creates an
impulse. Please use
color.
Color pictures on
bubble map and write
in color also.
Make sure your
drawing covers the
entire page. Do not
copy from anyone!
Questions for 3.01 BM one
