Sagittal section of brain revealing the anterior midsagittal arteries.

Sagittal section of brain revealing midsagittal arteries.

Occipital portion of skull (yellow).

Inferior view of the circle of Willis which provides the arterial blood supply to the brain (posterior inferior cerebellar arteries).

Inferior view of the circle of Willis which provides the arterial blood supply to the brain (middle cerebral arteries).

Inferior view of the circle of Willis which provides the arterial blood supply to the brain (internal carotid arteries, posterior communicating arteries and posterior cerebral arteries).

Inferior view of the circle of Willis which provides the arterial blood supply to the brain (anterior cerebral arteries and anterior communicating artery).

Coronal section through the skull and brain reveals a epidural hematoma. The dark area in the lower left area is the hematoma. Note the broken blood vessel and the shift of midline structures.

Brain, arteries