Head Veins PDF

Question Answer What are the two types of veins found in the 1. Diploic veins, 2. Emissary veins, 3- Plexuses of the skull foramina. wall of the skull? Where do diploic veins occupy channels? In the diploë of the cranial bones. What are the...

Question Answer What are the two types of veins found in the 1. Diploic veins, 2. Emissary veins, 3- Plexuses of the skull foramina. wall of the skull? Where do diploic veins occupy channels? In the diploë of the cranial bones. What are the walls of diploic veins formed of? Endothelium resting upon a layer of elastic tissue. Name the diploic veins? Frontal diploic vein ,Temporal anterior diploic vein, Temporal posterior diploic vein and Occipital diploic vein. What does the frontal vein open into? The supraorbital vein and the superior sagittal sinus. Where does the anterior temporal vein open The sphenoparietal sinus and into one of the deep temporal veins, through an aperture in the great into? wing of the sphenoid. Where is the posterior temporal vein situated? In the parietal bone. Where does the posterior temporal vein end? In the transverse sinus, through an aperture at the mastoid angle of the parietal bone or through the mastoid foramen. Where does the occipital vein open Into the occipital vein. externally? Where does the occipital vein open internally? Into the transverse sinus or into the confluence of the sinus (torcular Herophili). What are emissary veins? Valveless veins that normally drain the intracranial venous sinuses to veins on the outside of the skull. What makes emissary veins a possible route Being valveless. for transmission of extracranial infection into the skull? What is the function of the parietal emissary It connects the superior sagittal sinus and the superficial temporal vein. vein? Which veins does the mastoid emissary vein It connects the sigmoid sinus and occipital or posterior auricular vein. connect? What is the role of the condylar emissary It connects the sigmoid sinus and basilar plexus or vertebral vein. vein? Which parts does the occipital emissary vein It connects the transverse sinus and the occipital vein. connect? What is the function of the Venous plexus of It connects the cavernous sinus and pterygoid plexus. the foramen ovale? What does the Venous plexus of the carotid It connects the cavernous sinus and pterygoid plexus. artery canal connect? Which structures does the Venous plexus of It connects occipital sinus and internal jugular vein. the hypoglossal nerve canal connect? Do the sinuses of the dura matter have No, they are devoid of valves. valves? Where are the sinuses of the dura matter Between the two layers of the dura mater and lined by endothelium. situated? How many groups can the sinuses of the dura Two groups: postero-superior and antero-inferior. matter be divided into? What is the superior group of sinuses Superior Sagittal Sinus, Inferior Sagittal Sinus, Straight Sinus, Transverse Sinus, Sigmoid Sinus, connected to the confluence of sinuses? Occipital (Basilar) Sinus. What are inferior group of the sinuses of the Cavernous sinus, Intercavernous sinuses, Superior petrosal sinus, Inferior petrosal sinus, Basilar dura matter? plexus. Where does the superior sagittal sinus occupy The attached or convex margin of the falx cerebri. in the brain? Where does the superior sagittal sinus At the foramen cecum. Question Answer commence? What does the superior sagittal sinus deviate The corresponding transverse sinus. into as it continues backward? What extends transversely across the inferior Numerous fibrous bands (chordæ Willisii). angle of the superior sagittal sinus? How many lacunae are usually on either side Three lacunae. of the superior sagittal sinus? What kind of veins does the superior sagittal Superior cerebral veins, veins from the diploë and dura mater, veins from the pericranium. sinus receive? Where is the inferior sagittal sinus contained? In the posterior half or two-thirds of the free margin of the falx cerebri. Where does the inferior sagittal sinus end? In the straight sinus. What does the inferior sagittal sinus receive The falx cerebri and occasionally a few from the medial surfaces of the hemispheres. veins from? Where is the straight sinus situated? At the line of junction of the falx cerebri with the tentorium cerebelli. What does the straight sinus receive besides The great cerebral vein (great vein of Galen) and the superior cerebellar veins. the inferior sagittal sinus? Where do the transverse sinuses begin? At the internal occipital protuberance. What is the direct continuation of the superior The right transverse sinus. sagittal sinus? Where does the left transverse sinus originate The straight sinus. from? Where does the transverse sinus lie in the In the attached margin of the tentorium cerebelli. attached margin? Where does the transverse sinus end? In the internal jugular vein at the jugular foramen. What is the portion of the transverse sinus The sigmoid sinus. that occupies the groove on the mastoid part of the temporal bone sometimes termed as? Is the occipital sinus generally single or are Generally single, but occasionally there are two. there exceptions? With what does the occipital sinus The posterior internal vertebral venous plexuses. communicate? Where does the occipital sinus end? In the confluence of the sinuses. Where is the superior sagittal sinus lodged? On one side of the internal occipital protuberance, generally the right side. What does the confluence of the sinuses The occipital sinus. receive blood from? How is the confluence of the sinuses With the commencement of the transverse sinus of the opposite side. connected across the middle line? Where is the cavernous sinus located in the On either side of the body of the sphenoid bone, extending from the superior orbital fissure to the skull? apex of the petrous portion of the temporal bone. What does the cavernous sinus open into The petrosal sinuses. behind? What structures are found on the medial wall The internal carotid artery, accompanied by filaments of the carotid plexus and The abducent nerve of the cavernous sinus? What structures are found on the lateral wall The oculomotor and trochlear nerves, and the ophthalmic and maxillary divisions of the trigeminal of the cavernous sinus? nerve. What does the cavernous sinus communicate The transverse sinus. Question Answer with by means of the superior petrosal sinus? Through which sinus does the cavernous The inferior petrosal sinus. sinus communicate with the internal jugular vein? What does the cavernous sinus communicate The pterygoid venous plexus. with through the foramen Vesalii, foramen ovale, and foramen lacerum? How do the two sinuses of the cavernous By means of the anterior and posterior intercavernous sinuses. sinus communicate with each other? What are the characteristics of the superior Small, narrow, connects the cavernous with the transverse sinus, runs lateralward and backward petrosal sinus? from the posterior end of the cavernous sinus, over the trigeminal nerve, and lies in the attached margin of the tentorium cerebelli and in the superior petrosal sulcus of the temporal bone. What does the superior petrosal sinus Some cerebellar and inferior cerebral veins, and veins from the tympanic cavity. receive? Where is the inferior petrosal sinus situated? In the inferior petrosal sulcus formed by the junction of the petrous part of the temporal with the basilar part of the occipital bone. Where does the inferior petrosal sinus begin Begins in the postero-inferior part of the cavernous sinus and ends in the superior bulb of the internal and end? jugular vein. What is the function of the Basilar plexus? To connect the two inferior petrosal sinuses. With which venous plexus does the Basilar The anterior vertebral venous plexus. plexus communicate? What are the tributaries of the facial vein? a. Angular vein, b. Supratrochlear vein, c. Supraorbital vein, d. Palpebral vein, e. External nasal veins, f. Labial veins, g. Deep facial vein, h. Parotid veins, i. Submental vein, j. Retromandibular vein. What veins form the retromandibular vein? Superficial temporal and maxillary veins. Where does the retromandibular vein In the substance of the parotid gland, superficial to the external carotid artery but beneath the VII n., descend? between the ramus of the mandible and the S - C - M muscle. What does the anterior branch of the The anterior facial vein to form the common facial vein. retromandibular vein unite with? What happens to the posterior branch of the It is joined by the posterior auricular vein and becomes the external jugular vein. retromandibular vein? What are the tributaries of the retromandibular a. superficial temporal vein, b. middle temporal vein, c. transverse facial vein, d. articular veins, e. vein? stylomastoid vein, f. anterior auricular veins, g. parotid veins, h. maxillary veins. Which vein is a tributary of the Parotid veins. retromandibular vein and is related to the parotid region? What are the tributaries of the Pterygoid a. sphenopalatine vein, b. Middle meningeal vein, c. deep temporal veins, d. superior alveolar veins, plexus? e. inferior alveolar vein, f. inferior ophthalmic vein, g. plexus of the foramen ovale, h. plexus of the internal carotid artery canal. Which veins are part of the Deep veins of the Occipital vein, pharyngeal veins, lingual veins. head? Name the anastomoses btw intracranial and 1. ophtalmic veins: extracranial veins ? a. superior ophtalmic vein (connects the facial vein and the cavernous sinus) b. inferior ophthalmic vein (connects the facial vein and the pterygoid plexus) 2. diploic veins 3. emissary veins 4. plexus of the foramen ovale 5. plexus of the hypoglossal nerve canal 6. plexus of the internal carotid artery canal