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Day 05

A collection of 3 issues

15 CEREBRAL & CRANIAL VASCULATURE

# 16 CEREBRAL & CRANIAL VASCULATURE 👩‍⚕️ Cerebral and cranial vasculature is one of the highest-yield neuroanatomy topics for MRCS Part A. Examiners come back to the same handful of facts again and again: the order of internal carotid artery branches, the cortical territory supplied by each cerebral artery, and the

17 DURAL VENOUS SINUSES

# 18 Dural Venous Sinuses Detailed notes The dural venous sinuses are valveless endothelium-lined channels that sit between the periosteal and meningeal layers of the dura mater. They have no muscular wall and no valves, which means flow is passive and bidirectional under pathological conditions — a fact that explains why

18 VENTRICULAR SYSTEM OF THE BRAIN

# 19 VENTRICULAR SYSTEM OF THE BRAIN The ventricular system is a connected set of fluid-filled cavities inside the brain that produce, circulate and finally hand off cerebrospinal fluid (CSF) to the venous system. For MRCS Part A, this topic is almost entirely about three things: knowing the flow pathway