Practical Practical NeuroanatomyNeuroanatomy

CEREBRUMCEREBRUM

External features of the cerebrum

Surfaces: - Superolateral

- Medial

- Inferior ( orbital & tentorial )

Borders: - Superomedial

- Inferolateral

- Superciliary

- Inferomedial ( med. Orbital & med .

Occipital(

External features of the cerebrum

External features of the cerebrum

Poles: - Frontal

- Occipital

- Temporal

Lobes:- Frontal

- Parietal

- Temporal

- Occipital

External features of the cerebrum

Sulci & Gyri Of the superolat. surface

Sulci & Gyri Of the medial surface

Sulci & Gyri Of the inferior surface

Sulci & Gyri Of the inferior surface

Functional areas of the frontal lobe

*Primary motor area (4).*Premotor area (6).

*Broca’s area (44,45). -Motor speech area ( expressive aphasia)

*Frontal eye field area(6,8,9). -Horizontal conjugate eye movements

*Prefrontal area (9,10,11,12). -Area of intellectual functions

Functional areas of the frontal lobe

Functional areas of the parietal lobe

*Primary sensory area (3,1,2).

*Sensory association area (5,7).

*Supramarginal gyrus. -Area of motor skills (Lt. side).

*Angular gyrus. -Rt: Prietal eye field area

- Lt: Psycho-visual area ( written & printed words).

Functional areas of the parietal lobe

Functional areas of the parietal lobe

Functional areas of the tempral lobe

*Primary auditory area (41,42). -Reception of sound (Partial deafness)

*Auditory association area (22). -Interpretation of sound (Auditory agnosia)

*Sensory speech area of Wernicke. -Interpretation of written & spoken language.

- Lesion: Recptive aphasia.

Functional areas of the tempral lobe

Functional areas of the tempral lobe

Functional areas of the occipital lobe

*Primary visual area (17).

*Visual association area (18,19).

*Occipital eye field area. -Reflex conjugate eye movement.

Functional areas of the occipital lobe

The White Matter of the Cerebrum

Association fibers

The White Matter of the Cerebrum

Projection fibers

The White Matter of the Cerebrum

The White Matter of the Cerebrum

Blood Supply Of The Brain

Blood Supply Of The Brain

Blood Supply Of The Brain

Blood Supply Of The Brain

Blood Supply Of The Brain

Blood Supply Of The Brain