This opaque covering is the dura

The meninges cover and protect the brainFrom outer to inner they include:1. Dura

-tough outer layer we took off2. Arachnoid

-The Cerebral Spinal Fluid (CSF) flows between the Arachnoid and Pia layers and serves to nourishand protect the brain & spinal cord.

3. Pia-pearly layer extends intothe sulci

Frontal Lobe

LOBES of the BRAIN

Parietal Lobe Parietal Lobe

Occipital Lobe

Cerebellum

Cerebellum

Brain Stem: Midbrain (we won’t differentiate this) Pons Medulla

LongitudinalFissure

Gyrus Sulci

Cerebellum

The shiny coating is the Pia Mater

The Pia Mater is the innermost meningeal layer.It extends into the sulci.

Transverse FissureSeparates cerebellumand cerebrum

Pons

Lateral View: Left Hemisphere of the Cerebrum and cerebellum with brainstem

MedullaBeginning

of spinal cord

Left Parietal Lobe

Cerebellum

Transverse Fissure

TemporalLobe

FrontalLobe

Olfactory Bulbs

Optic Chiasm

PituitaryGland

Underside of Brain

Brain Stem(Pons & Medulla)

Optic Nerves

Capillary Bed

This usually gets pulled off with the dura.

Posterior (rear) viewshowing cerebellum being pulled down to expose the Superior colliculi, inferior colliculi,and the Pineal Gland.

Cerebellum

Superior Colliculi Inferior Colliculi

PinealGland

Occipital Lobe of Cerebrum

PonsInfundibulumStalk of the pituitary

Optic Chiasm

MedullaOlfactory Bulb

Mammillary Body

Hypothalamus Deep to the infundibulum Occulomotor Nerve

Thalamus

Optic Chiasm

Corpus callosum Fornix

Pons MedullaSpinal Cord

Arbor VitaeOf Cerebellum

Pituitary Gland

Lateral view, hemi section of lab brain model.

superior

inferior

anteriorposterior

Brain stem

Corpus callosum

Cerebellum

Pituitary GlandOlfactory Tract

pons

Posterior

Anterior

Axons of Motor Neurons

Anterior Gray Horn: Contains cell bodies of somatic motor neurons

Lateral Gray HornPosterior Gray Horn

Posterior White Column

Axons of Sensory Neurons

Dorsal Root Ganglion

Spinous Process of Vertebrae

Central Canal: contains CSF

Contains Sensory & Interneurons

SPINAL CORD ANATOMYKeep in mind that our models are HUGE. The spinal cord

Is really only about the thickness of your pinky finger!

This is the URL to a sheep dissection lab created by five students in the bi-college (Haverford and Bryn Mawr) community: Jessica Kuhn, Jessica Magid, Karen Revere, Elizabeth Caris, and Gray Vargas through science education at Bryn Mawr College. It is a fantastic site to explore the brain. Not everything you will learn will be on a test BUT remember that educating yourself in your field is NOT about what is going to be on the test .

TRY THIS TO TEST YOURSELF!!