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NEURO-ANATOMY
The Bell-Magendie Law:
In the door
and out the vent -
that's how spinal
info's sent!
Sara the ballerina
has a helluva
cerebellum.
Tectum, up top,
sensory colliculi.
Tegmentum for
motor down below.
The Meninges: PAD the Brain
P = Pia mater
A = Arachnoid mater
D = Dura mater
PATHWAYS
Thalamic Nuclei:
VISION @ LGN = Light
(Lateral Geniculate Nucleus)
AUDITION @ MGN = Music
(Medial Geniculate Nucleus)
TOUCH @ VPN =
Very Personal
(Ventral Posterior Nucleus)
SMELL @ DMN = Dog Muzzle
(Dorsal Medial Nucleus)
MOTOR @ VLN = Victory Lap
(Ventro-Lateral Nucleus)
REFLEXES
Pain Withdrawl Reflex:
Touch something hot
stimulate the nociceptor,
but before your brain can say
"touch that never ever!"
interneuron in the spine
says "contract the flexor!"
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DEVELOPMENT
Cells that fire together
wire together!
NEURONS
Neurotransmitters:
Bind to post
but don't go in -
float back home
to be used again
The resting cell
is polarized -
more positive out
than it is inside.
When ions of Sodium want to
come in, what does the
resting cell say?
Na+ Na+ Na+
This is because
which minority
is locked inside?
K+ K+ K+
EPSP
= Excitatory Post Synaptic Potential
= Cell is HYPO-polarized.
When you're excited, say "O!"
IPSP
= Inhibitory Post Synaptic Potential
= Cell is HYPER-polarized.
When you're inhibited, say "-ER!"
SEX
Hypothalmic Nucleus
most active in...
...Females = VMH
(Ventro-Medial Nucleus)
Venus Must Have!
...Males = SDN
(Sexually Dimorphic Nucleus)
Straight Dude Needs!
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