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Parietal Emissary Vein (Right)
Cardiovascular System

Parietal Emissary Vein (Right)

Emisserium parietale

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The parietal emissary veins arise from the superficial temporal vein, or other superficial veins of the scalp.


The parietal emissary veins pass superiorly along the external surface of the parietal bone. They then pass through small foramina in the parietal bone, one on either side of the midline of the skull, to enter the cranial cavity and subsequently drain into the superior sagittal sinus (Tubbs, Shoja and Loukas, 2016).


The parietal emissary veins have no named tributaries, but they may interact with diploid veins.

Structures Drained

The parietal emissary veins drain the parietal scalp into the superior sagittal sinus. However, one must be aware of the fact that emissary veins are valveless channels and hence, the blood can flow in either direction.


Tubbs, R. S., Shoja, M. M. and Loukas, M. (2016) Bergman's Comprehensive Encyclopedia of Human Anatomic Variation. Wiley.

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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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