The Venous Sinuses Of The Brain Flashcards
Where does the venous sinuses situated?
On the dura mater, between the periosteal and the meningeal layer
Lies in the upper fixed border of the falx cerebri.
The superior sagittal sinus
It runs backward and becomes continuous with the right transverse sinus.
The superior sagittal sinus
Lies in the lower free margin of the falx cerebri.
The inferior sagittal sinus
Joins the great cerebral vein to form the straight sinus.
The inferior sagittal sinus
Lies at the junction of the falx cerebri and the tentorium cerebelli.
The straight sinus
Formed as a direct continuation of the transverse sinuses.
The sigmoid sinuses
Leaves the skull through the jugular foramen to become the internal jugular vein.
The sigmoid sinuses
It communicates with the vertebral veins through the foramen magnum.
The occipital sinus
Group of sinuses lies on the lateral side of the body of the sphenoid bone.
The cavernous sinuses
What does the cavernous sinuses receive anteriorly?
The inferior ophthalmic vein + The central vein of the retina
The cavernous sinuses drain posteriorly into the transverse sinus through…
The superior petrosal sinus
What are the structures that pass through the cavernous sinus?
Internal carotid artery + the abducent nerve
What are the structures that pass on the lateral wall of the cavernous sinus?
The occulomotor and the trochlear nerves + the ophthalmic and the maxillary branches of the trigeminal nerve.
How can an infection of the face spreads to the cavernous sinus?
By the facial and the inferior ophthalmic veins
They connect the veins of the scalp to the venous sinuses.
The emissary veins
A group of veins, occupying channels within the bones of the vault of the skull.
The diploic veins
Formed at the medial angle of the eye by the union of the supraorbital and the supratrochlear veins.
The facial vein
The facial vein join the anterior division of the ……… vein to drain into the IJV.
The retromandibular vein
It enters the parotid gland, where it joins the maxillary vein to form the retromandibular vein.
The superficial temporal vein
Formed in the infratemporal fossa from the pterygoid venous plexus.
The maxillary vein
The retromandibular vein, after leaving the parotid gland, it divides into an anterior branch which join the……….. and a posterior branch which joins the …………..
Anterior branch: join the facial vein.
Posterior branch: join the posterior auricular vein.
How does the external jugular vein is formed?
By the union of the retromandibular and the posterior auricular veins
Joins the external jugular vein deep to the SCM muscle.
The anterior jugular vein
A continuation of the sigmoid sinus, and leaves the skull through the jugular foramen.
The internal jugular vein
