Brain & Cranial Nerves

By

Michael J. Harman

Cerebrum

Cerebral hemispheres

Corpus callosum

Cerebral cortex – gray matterOuter covering of the cerebrum

White matter

Convolution (gyri)

Precentral gyrus (motor)

Postcentral gyrus (sensory)

Central sulcus

Lateral sulcus

Longitudinal fissure

Transverse fissure

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Frontal lobe

Parietal lobe

Temporal lobe

Occipital lobe

Insula

Ventricles

Lateral ventricles

Third ventricle

Fourth ventricle

Choroid plexus

Diencephalon

Includes:- Thalamus- Hypothalamus- Infundibulum- Pituitary Gland- Optic Chiasma- Mammillary Bodies

Thalamus

Hypothalamus

Infundibulum

Connects pituitarygland to brain

Pituitary gland

Optic chiasma

Mammilary bodies

Cerebellum

Arbor vitae: tree-like pattern

Brain stem

Includes:- Midbrain- Pons- Medulla Oblongata

Midbrain

Includes:- Cerebral peduncles- Corpora Quadrigemina

Cerebral peduncles

Corpora quadrigemina*

Pons

Medulla oblongata

Cranial Nerves

• I – Olfactory• II – Optic• III – Oculomotor• IV – Trochlear• V – Trigeminal• VI – Abducens

• VII – Facial• VIII – Auditory• IX – Glossopharyngeal• X – Vagus• XI – Accessory• XII - Hypoglossal

Cranial Nerves