Anatomy

Sigmoid Sinus "What is the sigmoid sinus? A detailed question and answers guide" Question 1. Sigmoid sinus Answer: It is S-shaped paired sinus It is direct continuation of the transverse sinus Extend: From the posteroinferior angle of the parietal bone to the posterior part of the jugular foramen Tributaries: Mastoid and condylar emissary vein … [Read more...] about Sigmoid Sinus

Falx Cerebri Question 1. Falx cerebri Answer: It is large sickle-shapes fold of duramater It occupies the median longitudinal fissure between the two cerebral hemispheres "Understanding falx cerebri through FAQs: Anatomy, functions, and uses explained" Ends: 1. Anterior end It is narrow & attached to the crista galli 2. Posterior end It is … [Read more...] about Falx Cerebri

Tentorium Cerebelli Question 1. Tentorium cerebella Answer: It is tent shaped fold of duramater forming the roof of the posterior cranial fossa It separates cerebellum from the occipital lobes of the cerebrum It divides cranial cavity into supratentorial & infratentorial compartments Margins: Anterior free margin Outer attached … [Read more...] about Tentorium Cerebelli

Superior Sagittal Sinus Question 1. Superior sagittal sinus Answer: Sagittal sinus occupies the upper convex attached margin of the falx cerebri It begins anteriorly at the crista galli by the union of tiny meningeal veins The interior of the sinus shows Openings of the superior cerebral veins Opening of venous lacumae Arachnoid villi & granulations … [Read more...] about Superior Sagittal Sinus

Dura Mater Question 1. Duramater Answer: It is the outermost, thickest & toughest membrane covering the brain Layers: 1. Outer / Endosteal layer Serves as endosteum for the skull bones It is richly vascular 2. Inner/Meningeal layer Surrounds the brain It is folded to divide the cranial cavity into compartments It is more fibrous & … [Read more...] about Dura Mater