Porth's Essentials of Pathophysiology, 4e

931

Disorders of Brain Function

C h a p t e r 3 7

Superficial temporal Posterior auricular Occipital

Infraorbital Internal maxillary

Transverse facial Facial

Vertebral Internal carotid

External carotid

Common carotid

A

Middle cerebral Anterior cerebral

Anterior communicating Internal carotid Posterior communicating Posterior cerebral Basilar Vertebral

Anterior spinal

B FIGURE 37-12. Cerebral circulation. (A) The internal carotid artery ascends to the base of the brain. The right vertebral artery is also shown as it ascends through the transverse foramina of the cervical vertebrae. (B) The cerebral arterial circle (circle of Willis).

Motor cortex

Premotor cortex

Somatosensory cortex

Frontal eye field

Somatosensory association

Superior division of middle cerebral artery

Visual cortex

Wernicke aphasia area

FIGURE 37-13. Lateral view of the cerebral hemisphere, showing areas of the cortex supplied by the superior and inferior divisions of the middle cerebral artery.

Inferior division of middle cerebral artery

Auditory area