Inferior Ophthalmic Vein

The inferior ophthalmic vein begins in a venous net-work at the forepart of the floor and medial wall of the orbit; it receives some vorticose veins and other veins from the Rectus inferior, Obliquus inferior, lacrimal sac and eyelids, runs backward in the lower part of the orbit and divides into two branches.

One of these passes through the inferior orbital fissure and joins the pterygoid venous plexus, while the other enters the cranium through the superior orbital fissure and ends in the cavernous sinus, either by a separate opening, or more frequently in common with the superior ophthalmic vein.

This article incorporates text from a public domain edition of Gray's Anatomy.

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 · inferior anastomotic (Labbé) · superior anastomotic (Trolard)

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

M: VAS

anat (a:h/u/t/a/l,v:h/u/t/a/l)/phys/devp/cell/prot

noco/syva/cong/lyvd/tumr, sysi/epon, injr

proc, drug (C2s+n/3/4/5/7/8/9)

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