Brain + Spinal Cord

meninges

meninges

The protective membranes that cover the brain and spinal cord, consisting of three layers: dura mater, arachnoid mater, and pia mater.

dura mater

The outermost layer of the meninges, providing a tough protective barrier for the brain and spinal cord.

Arachnoid mater

The middle layer of the meninges, characterized by a web-like structure that cushions the brain and spinal cord, and contains cerebrospinal fluid.

Pia mater

Only 1-2 cell layers think (can’t see)

Gyri

are the raised folds on the surface of the brain, which increase its surface area and accommodate more neurons.

Sulci

are the grooves or indentations between the gyri on the surface of the brain, also contributing to the brain's surface area.

Longitudinal Fissure

Corpus Callosum

Central Sulcus

Parieto-occipital sulcus

Lateral Sulcus

Cingulate sulcus

Cingulate Gyrus

Frontal Lobe

Parietal Lobe

Temporal Lobe

Occipital Lobe

Olfactory nerves (cranial nerve 1)

olfactory bulb

olfactory tract

lateral ventricles

Diencephalon

Thalamus

Epithalamus

Pineal Gland

Hypothalamus

Pituitary Stalk

circled part

Optic Nerve

Optic chiasm

Optic tract

Third ventricle

Mesencephalon

Pons

Cerebellum

Folia

The folds or ridges on the surface of the cerebellum

Sulci in cerebellum

fourth ventricle

medulla oblongata

meninges

(Teal part)

rootlets

dorsal root ganglia

spinal nerves

conus medullaris

cauda equina

tectum

tegmentum

midbrain aqueduct