Men ought to know that from nothing else but the brain ...simonslab.neurobio.pitt.edu/snc/Intro to...
Transcript of Men ought to know that from nothing else but the brain ...simonslab.neurobio.pitt.edu/snc/Intro to...
“Men ought to know that from nothing else but the brain comes the joys,
delights, laughter and sports, sorrows, grief, despondency, and
lamentations. And by this, in a special manner, we acquire wisdom and
knowledge, and see and hear and know what are foul and what are fair, what
are bad and what are good, what are sweet and what are unsavory…
And by the same organ we become mad and delirious, and fears and terrors
assail us. All these things we endure from the brain when it is not healthy…
in these ways I am of the opinion that the brain exercises the greatest power
in the man.” Hippocrates – ca. 400 B.C.
S. Ramon y Cajal
Generic Neuron…
Parts of a synapse…
Distinctive dendrites…
GABA
Glu
Neurons have distinct axonal patterns
…into clusters or “nuclei”
…into laminae or layers
Neurons tend to group ...so do axons
White matter
Chick embryo
Head and
Body axis
Bo
dy a
xis
Head axis
Caudal
Caudal
Rostral
Rostral
Dorsal
Dorsal
(or Superior)
Ventral
Ventral
(or Inferior)
Ventral
(or Anterior)
Dorsal
(or Posterior)
Some terminology…
Sagittal
Planes of view
Brainstem
Thalamus
Cerebral cortex
Spinal cord
Cerebellum
A’ B’
B A C
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Some principles of neural systems