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Occipital Diploic Vein
Cardiovascular System

Occipital Diploic Vein

Vena diploica occipitalis

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Quick Facts

Origin: Situated mainly in the occipital bone.

Course: Run through the diploic channels between the outer and inner tables of the cortical bone in the posterior occipital region.

Tributaries: None.

Drainage: Occipital bone.

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The occipital diploic vein is situated mainly in the occipital bone.


Diploic channels are situated in the diploe or the spongy layer, between the outer and inner tables of the cortical bones. The occipital diploic veins represent a network of valveless intraosseous veins which course primarily through the occipital bone.


There are no named tributaries; however, the occipital diploic vein communicates with the posterior temporal diploic vein.

Emissary veins such as the emissary mastoid vein and some occipital (and parietal) emissary veins link the occipital (and posterior temporal) diploic veins with the veins of the posterior scalp and neck (in the suboccipital venous plexus).

The occipital diploic vein opens either externally into the occipital vein (suboccipital plexus of veins), or internally into the transverse sinus or into the confluence of the sinuses (Garcia-Gonzalez et al., 2009).

Structures Drained

The occipital diploic vein drains the occipital bone.


Garcia-Gonzalez, U., Cavalcanti, D. D., Agrawal, A., Gonzalez, L. F., Wallace, R. C., Spetzler, R. F. and Preul, M. C. (2009) 'The diploic venous system: surgical anatomy and neurosurgical implications', Neurosurg Focus, 27(5), pp. E2.

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Vein is a secreted ligand for the Drosophila EGFR receptor homolog (EGFR), and EGFR-mediated activation of the Ras/MAP kinase pathway is essential for longitduinal glial cell survival (Hidalgo et al., 2001).

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