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Arterial and nerve supply of the Scalp The supratrochlear
and the supraorbital arteries in company with supratrochlear and
the supraorbital nerves. The superficial temporal artery,zygomaticotemporal and auriculotemporal nerve. The posterior auricular artery and lesser occipital nerve (cervical plexus C2) The occiptal artery and greater occipital nerve (posterior ramus of the second cervical nerve).
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The venous drainage of the Scalp The supratrochlear and
supraorbital veins (to from the facial vein). The superficial temporal
vein (to from the retromandibular vein). The postrior auricular vein (to from the external jugular vein). The occipital vein (into the suboccipital venous plexus, in turn into the vertebral veins, occasionally forward into the internal jugular vein. The veins of the Scalp freely anastomose with another and are connected to the diploic veins and the intracranial venous sinuses by the valveless emissary veins.