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7 Cards in this Set

  • Front
  • Back
SPHENOPARIETAL SINUS
M. Sphenoparietal sinus: courses medially on the inferior surface ofthe lesser
wing ofthe sphenoid and drains into the cavernous sinus
EMISSARY VEINS

ANASTOMIC CHANNELS...
N. Emissary veins

1. Anastomotic channels between intracranial dural venous sinuses and
extracranial veins; some emissary veins are noted below
EMISSARY VEINS

MASTOID EMISSARY VEIN
2. Mastoid emissary vein: traverses the mastoid foramen; connects the sig-
moid sinus with the occipital and posterior auricular veins
EMISSARY VEINS

PARIETAL EMISSARY VEIN
3. Parietal emissary vein: traverses the parietal foramen; connects the
superior sagittal sinus and occipital vein
EMISSARY VEINS

EMISSARY VEIN OF THE FORAMEN CECUM
4. Emissary vein ofthe foramen cecum: present in the child, but often ab-
sent in the adult; connects the superior sagittal sinus with veins ofthe
nose
CONDYLAR EMISSARY VEIN (INCONSTANT)
5. Condylar emissary vein (inconstant): traverses the condylar canal; con-
nects the sigmoid sinus and external vertebra] venous plexus
EMISSARY VEINS

TRAVERSE WHAT? CONNECT WHAT?
6. Emissary veins also traverse foramen ovale and foramen lacerum; they
connect the cavernous sinus with the pterygoid venous plexus