This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Traumatic Brain Injury, Subject name: Surgery
Which of the following is commonest source of Extradural haemorrhage: 
Select and explain. 
A. Middle meningeal artery, B. Subdural venous sinus, C. Charcot's artery, D. Middle cerebral artery
A: Middle meningeal artery
Answer: A: Middle meningeal artery 
Explanation: Ans is 'a' ie Middle meningeal artery (Ref. Chandrasoma Taylor, 3/e, p 924)"Extradural Haemorrhage is an accumulation of blood between the skull and the dura. In 90% of cases, bleeding is from a branch of the middle meningeal artery". ChandrasomaAlso remember *Subdural Haemorrhage, commonest source is - communicating veins b/w the cerebral cortex and superior sagittal sinus.Intracerebral Haemorrhage, commonest source is - lenticulostriate arteries in the region around the basal ganglia* and internal capsule. It is frequently d/t rupture of Charcot-Bouchard aneurysms in the lenticulostriate arteries.Subarachnoid Haemorrhage - MC cause is rupture of Berry aneurysms.