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The occipital vein is a vein of the scalp. It originates from a plexus around the external occipital protuberance and superior nuchal line to the back part of the vertex of the skull . It usually drains into the internal jugular vein , but may also drain into the posterior auricular vein (which joins the external jugular vein ).
The suboccipital venous plexus drains deoxygenated blood from the back of the head.. It communicates with the external vertebral venous plexuses.The external vertebral venous plexuses travel inferiorly from this suboccipital region to drain into the brachiocephalic vein.
The anterior part of it unites with the facial vein to form the common facial vein, which drains into jugular vein, and ultimately to the subclavian vein. The occipital vein terminates to the sub-occipital plexus. There are other veins, like the emissary vein and frontal diploic vein, which also contribute to the venous drainage.
Septal veins; Sigmoid sinus; Sphenoparietal sinus; Straight sinus; Sublingual vein; Suboccipital venous plexus; Superficial cerebral veins; Superficial temporal vein; Superficial veins of the brain; Superior anastomotic vein; Superior cerebral veins; Superior labial vein; Superior laryngeal vein; Superior ophthalmic vein; Superior petrosal ...
The posterior auricular vein begins upon the side of the head, in a plexus which communicates with the tributaries of the occipital vein and the superficial temporal vein. It descends behind the auricle. [1] It joins the posterior division of the retromandibular vein. [1] It drains into the external jugular vein. [1] [2]
The confluence of sinuses (Latin: confluens sinuum), torcular Herophili, or torcula is the connecting point of the superior sagittal sinus, straight sinus, and occipital sinus. It is below the internal occipital protuberance of the skull. It drains venous blood from the brain into the transverse sinuses.
The head and neck are emptied of blood by the subclavian vein and jugular vein. Right side of neck dissection showing the brachiocephalic, right common carotid artery and its branches The brachiocephalic artery or trunk is the first and largest artery that branches to form the right common carotid artery and the right subclavian artery .
The diploic veins drain this area into the dural venous sinuses. The four major trunks of the diploic veins found on each side of the head are frontal, anterior temporal, posterior temporal, and occipital diploic veins. [2] [3] They tend to be symmetrical, with the same pattern of large veins on each side of the skull. [1]