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Anthony Munoz period 6 Nervous system - Coggle Diagram
Anthony Munoz period 6 Nervous system
Major functions of the nervous system
integration: processing and interpretation of sensory input
motor output: effectors
sensory input:information gained by sensory receptors
Major divisions and subdivisions of the nervous system(include all subdivisions of CNS and PNS)
The central nervous system consist of the brain and spinal cord.
Peripheral nervous system is mostly spinal nerves and cranial nerves
Tissues (structure & function of neuronsand neuroglia)
neurons: transmit signals to each other
neuroglia
schwann cells
satellite cells:
dendrites
axon
axon terminal
myelin sheath
synapses
Classification of neurons
bipolor: 2 processes
unipolor: 1 process
multipolor: 3 or more process
Connective Tissue Coverings
dura matter (outer)
arachnoid (middel layer)
pia matter (innter)
Major parts and functions of the brain
major regions
diencephalon
brain stem
mid brain,pons, medulla
cerebral hemispheres
cerebellum
major function
major functions
memoery, emotion, sensory, control of movement, and automatic systems.
Major parts and functions of the spinal cord
enclosed in the vertebral column
function: provides two way communication between the brain and the body.
Action potential& the Nerve Impulse
action potential is neurons sending information to a muscle cell or axon
cranial nerves
facial nerve: sensory function of taste.
vestibulocochlear nerve: adjustments of sensitivity of receptors
abduens nerve: a mortor, rectus muscles
glossopnarynseal nerve: sensory of taste
trigeminal nerve: sensory impulse from various parts of the face.
vagus nerve: heart/lungs
trochlear nerve::directs the eye
accessary nerve spinal
ololomotor nerves: function to move the eye
hypoglossal nerve: swallowing and speech
optic nerves: purely sensory of sight
olfactory nerves: purely sensory of smell
spinal nerves
8 pair of cervical
ventral root (afferent) nerve to brain
dorsal root (efferent) brain to nerve
12 pairs of thoracic nerves
5 pairs of lumbar nerves
5 pairs of squral nerves pairs
1 pair of coccygeal nerves
neurotransmitters
epinephrine: increases hear rate, caused by fight or flight
:Acetylcholine: function is to activate muscles
norepinephrine: function is a stress transmitter
Compare & contrast the autonomic nervous system
consists of 2 sub divisons
sympathetic: fight or flight
parasympathetic: maintains the body homeostasis.
automatic nervous system regulates smooth, cardiac and glands
somatic nervous system: voluntary
reflex arc
integration center
transmit infromtion
motor neuron
conducts effectors
sensory neurons
transmit neurons
effectors
the solution to the reflex
receptors
eyes identify information
Disorders associated with Nervous System
autonomic neuropath: symptoms include dizziness after standing, sluggish and impaired.
hypertension: overactive sympathetic reaction to stress.
raynaudś disease: painful vasoconstriction in fingers and toes
phantom limb pain: pain felt in limb that has been amputated
chronic pain.
Drugs (Drugs of Abuse & Mouse Party)
GHD and rohypnol
MDMA
alcohol
inhalents
Methamphetamine
opioids
LSD
cocaine
marijuana
Nicotine
Psychedelics
heroine
ecstasy