Gross Anatomy
Maryann Martone, Ph. D.
1/08/2009
Organization of the Nervous System
•CNS
•Brain
•Spinal cord
•PNS
•Somatic
•Autonomic
•Sympathetic
•Parasympathetic
•Enteric
•Gut motility and secretion
Meninges
Leptomeninges =
Arachnoid + pia mater
Lepto: G delicate
Pachymeninges=dura mater
Pachy: G Thick
Epidural, subdural space
Subarachnoid space
The Ventricles
Divisions of the Brain
CSF
•125 ml in adult human
•500 ml/24 hr period
•Produced by choroid plexus, principally in the lateral ventricles
•Forms “water cushion” for brain
•Bathes neural tissue, extending into perivascular spaces
Cerebrospinal Fluid
Flow of CSF
Sinuses
Hydrocephalus
Cerebral Blood Supply
Divisions of the Brain
MotorSomatosensory
FF PP
TTOO
Vision
Audition
General Functions Associated with each Lobe
Lobes are not functional subdivisions but useful as reference
Sylvian Fissure
Some features are easy to find…
And some are not that easy…
Identifying the central sulcus
http://brainvis.wustl.edu/help/landmarks_core6/landmarks_core6.html/
http://www.sph.sc.edu/comd/rorden/anatomy/na_atlas.html
Corpus Callosum
Insular Cortex
And some things are hidden from view
Cingulate Gyrus
Other Useful Websites
• http://faculty.washington.edu/chudler/neuroroot.html– Greek and Latin roots of neuroscience (especially neuroanatomy)
words