Vein: Diploic veins
Veins of the diploë as displayed by the removal of the outer table of the skull.
Latin	venae diploicae
Gray's	subject #169 651
Drains from	diploë

The diploic veins are found in the skull, and drain the diploic space. This is found in the bones of the vault of the skull, and is the marrow-containing area of cancellous bone between the inner and outer layers of compact bone.

The diploic veins drain this area to the outside of the skull.

[edit] Specific diploic veins

They are usually four in number: one frontal, two temporal, and one occipital.

• (1) the frontal, which opens into the supraorbital vein and the superior sagittal sinus.

• (2) the anterior temporal, which is confined chiefly to the frontal bone, and opens into the sphenoparietal sinus and into one of the deep temporal veins, through an aperture in the great wing of the sphenoid.

• (3) the posterior temporal, which is situated in the parietal bone, and ends in the transverse sinus, through an aperture at the mastoid angle of the parietal bone or through the mastoid foramen.

• (4) the occipital, the largest of the four, which is confined to the occipital bone, and opens either externally into the occipital vein, or internally into the transverse sinus or into the confluence of the sinuses (torcular Herophili).

[edit] External links

• Diploic+veins at eMedicine Dictionary

v • d • e Veins (emissary, jugular and others) of head and neck (drainage patterns can vary) (TA A12.3.04-06, GA 7.644) External jugular Retromandibular maxillary (pterygoid plexus) · superficial temporal (anterior auricular) Direct posterior auricular transverse cervical · suprascapular · anterior jugular (jugular venous arch) Internal jugular Diploic/brain Cerebral Superficial cerebral veins: superior · superficial middle · inferior Deep cerebral veins: great · internal (basal, deep middle, superior thalamostriate) Cerebellar superior · inferior Sinuses To COS superior sagittal · straight (inferior sagittal) · occipital To CS sphenoparietal · intercavernous superior ophthalmic (ethmoidal, central retinal, nasofrontal, vorticose veins) · inferior ophthalmic To IJV sigmoid: transverse (petrosquamous) · superior petrosal inferior petrosal (basilar plexus, internal auditory veins) · condylar Facial/common facial frontal · supraorbital · angular · superior labial · inferior labial · deep facial Direct lingual (dorsal lingual, deep lingual, sublingual) · pharyngeal · superior thyroid (superior laryngeal) · middle thyroid Brachiocephalic Vertebral occipital (occipital emissary) · suboccipital venous plexus deep cervical Direct inferior thyroid (inferior laryngeal) · thymic

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