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Nervous System Eduardo Aguiar Period 5, will do more to help study for the…
Nervous System Eduardo Aguiar Period 5
some cranial nerves
facial (VII)
vestibulchochlear (VIII)
abducens (VI)
trigeminal (V)
glossopharyngeal (IX)
trochlear(iv)
vagus (X)
occulomotor(III)
accessory (XI)
optic (ii)
hypoglossal (XII)
olfactory (I)
drugs of abuse
LSD: inhibits and excites receptors, interferes with serotonin
cocaine: blocks transporters, which is left in the synaptic cleft overstimulating the cell
marijuana: turn off inhibitory neurotransmitters
methamphetamine: mimics dopamine, makes transporters work in reverse as it replaces dopamine in the vesicles
heroine: mimics natural opiates , turns odd dopamine inhibition, which leads to dopamine flooding the synaptic cleft
alcohol:GABA receptors are affected, becoming inhibitory, prevents cell excitement
ecstasy: mimics seretonin, transporter Acts in reverse and overstimulates cell
CNS
Brain regions
diencephalon
circle part in the inner brain is the
thalamus
which is the relay station where the brain can process everything
below is the
hypothalamus
which helps maintain homeostasis balance, and produces hormones
huge
cerebellum
which helps with muscle control and balancing the body
matters
white matter: myelinated and non myelinated axons
grey matter: no myelinated neurons and cell bodies
Brainstem:
the
midbrain
processes visual and auditory signals
the
pons
manages all autonomic movements and process
the
medulla
is a part which manages heart, circulation, and breathing.
cranial nerves
ventral root: has motor, efferent fibers that innervate Skeletal Muscles
dorsal root: has sensory, afferent fibers that conduct impulses from peripheral receptors
will do more to help study for the final