Brain Anatomy

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Meninges

Three membrane layers that cover and protect the brain: Dura, Arachnoid, and Pia Mater

Dura Mater

Outermost meninge layer (strong, thick, trashbag-like)

Arachnoid Mater

Middle meninge layer, weblike

Pia Mater

Innermost meninge layer, thin?

Cerebrum

Largest part of the brain, wrinkly, has the lobes

Gyrus

Tip of a fold on the brain

Sulcus

Dips in the folds of the brain

Frontal Lobe

Parietal Lobe

Occipital Lobe

Temporal lobe

Corpus Callosum

Connects the left and right hemispheres of the brain

Fornix

Cerebral Aqueduct

passageway between ventricles

Lateral ventricles

Cavity between fornix and corpus callosum

Choroid plexus

vessels found within ventricles that secrete CSF

Olfactory Bulb

olfactory bulbs

Brainstem

Medulla

Connection between brainstem and spinal cord

pons

Belly of the brainstem seahorse

Midbrain

neck of the brainstem seahorse

Superior colliculus

Inferior Colliculus

Thalamus

Hypothalamus

Seashorse Face

Optic Chiasma

Where optic nerves cross

Optic Nerve

Circle of Willis

Pineal body (Gland)

Pituitary Gland

Cerebellum

Arbor Vitae

Lines on the cerebellum

Fourth Ventricle