9.5 Lesson 5: Venous (Vein) Drainage of the Scalp

Venous (Vein) Drainage of the Scalp I

- The veins of the scalp freely anastomose (connect) with one another.
- They are connected to the diploic veins of the skull bones and the intracranial venous sinuses by the valveless emissary veins.
- The supratrochlear and supraorbital veins unite at the medial margin of the orbit to form the facial vein.
- The superficial temporal vein unites with the maxillary vein in the substance of the parotid gland to form the retromandibular vein.

Venous (Vein) Drainage of the Scalp II

The posterior auricular vein unites with the posterior division of the retromandibular vein, just below the parotid gland,
to form the external jugular vein.
The occipital vein drains into the suboccipital venous plexus, which lies beneath the floor of the upper part of the posterior triangle;
the plexus in turn drains into the vertebral veins or the internal jugular vein.