Page 26 - Libro 2

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PART 1 — INTRODUCTION TO THE VASCULAR SYSTEM
Internal carotid artery
Posterior cerebral artery
Basilar artery Internal acoustic artery Anterior inferior cerebellar artery Vertebral artery
Anterior spinal artery
and form a dense plexus around the vertebral artery. These veins descend in the transverse foramina of the cervical vertebrae. This plexus ends in a single trunk, the vertebral vein, which emerges from the sixth cervical vertebra and empties into the brachio- cephalic vein.
Superior sagittal sinus Inferior sagittal sinus Straight sinus
Right transverse (lateral) sinus
Right external jugular vein
Right vertebral vein
Right subclavian vein Right axillary vein
Anterior communicating artery Anterior cerebral artery Middle cerebral artery
Posterior communicating artery
Superior cerebellar artery Pontine arteries
Posterior spinal artery
THE AORTIC ARCH AND UPPER EXTREMITY ARTERIES
The ascending aorta begins at the aortic valve and runs upward, becoming the aortic arch. It contin- ues upwards and backwards, crossing the trachea. It
Superficial temporal vein Cavernous sinus
Maxillary vein
Retromandibular vein Facial vein
Right internal jugular vein Right anterior jugular Right brachiocephalic vein
Superior vena cava
Figure 1-8 Circle of Willis.
Figure 1-9 Venous drainage of the brain, head, and neck.