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)

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