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Nervous system Jamie Pino (neuron (classification of neuron (multipolar…
Nervous system Jamie Pino
Major Functions of the Nervous system
sensory, integration, and motor
divisions of the nervous system
central nervous system: Includes the brain, spinal cord
major part of the brain and their functions
cerebrum: composed of left and right hemisphere, function is to interpret speech, touch, emotion, etc...
frontal lobe: emotion, problem solving, memory, language
parietal lobe: interprets sensory info
occipital lobe:memory formation
temporal lobe: vision, memory, interpertation
motor cortex:
primary cortex: generate nerve impulses for movement
types of nerves
motor nerves
cranial nerves
oculomotor (III)
trochlear (IV)
abducens (VI)
accessory (XI)
Olfactory Nerve
Optic Nerve
Trigeminal Nerve
Facial Nerve
Vestibulocochlear Nerve
Glossopharyngeal Nerve
Vagus Nerve
Hypoglossal Nerve
autonomic nerves
sensory nerves
thalamus: interthalamic adhesion connects nuclei
hypothalamus: mammilary bodies bulge ventrally from hypothalmus
epithalamus: forms roof of third ventricle
midbrain: between pons and dienephalon
pons: between midbrain and medulla oblogate
spinal nerves:
peripheral nervous system: includes the cranial and spinal nerves
motor (efferent) divison: the motor nerve fibers
somatic nervous system: voluntary nerve fibers, conducts impulses to skeletal muscle
autonomic nervous system:the involuntary motor nerve fibers , moves impulses from CNS ro cardiac, smooth muscles
layers of the meninges
periosteum
cranium
dura mater
arachnoid
pita mater
spaces and ventricles
right lateral Ventricle
cerebral aqueduct
fourth ventricle
median aperture
3rd ventricle
neuroglia in CNS
astrocytes: help determine capillary permeability
Microglia Cells: transform into special type of macrophage that phagocytizes
Ependymal cells:from a permeable membrane
neuron
dendrite
nucleus
axon
myeline sheath
cell body
schwann cell
node of ranvier
axon terminal
classification of neuron
multipolar neuron
bipolar neurons
unipolar neurons
Major parts and
functions of the spinal cord;
connects the peripheral nervous system to the brain
Action potential
the stimulus makes the channels open, sodium and potassium go in and out
then depolarization occurs with stimuli
then comes repolarization
hyperpoloraization happens, under the resting state
the last part is the resting state
drugs that affect the brain
heroin, cocaine, Mariujuana, ecstacy, meth, alcohol, LSD, opioids , MDMA, nicotine, inhalents, GNB, psychedelics
they can reverse effects in neurotransmitters, block neurons to release excessive dopamine
diseases associated with the brain
alzheimer's
parkinsons
dementia
neurotransmitters
acetylcholine
norepinephrine
serotonin
dopamine
GABA
types
Excitatory neurotransmitters
Inhibitory neurotransmitters
Modulatory neurotransmitters
Compare & contrast the autonomic nervous system
the autonomic nervous system manipulayes cardiac and muscual muscle while somatic nervous system controls the contaction of the muscles
