Pain sensitive intracranial structure is: (A) Piamater, (B) Pial vessels, (C) Duramater, (D) Brain matter
Answer is C. Pain-Sensitive Structures. Headache is caused by traction, displacement, inflammation, vascular spasm, or distention of the pain-sensitive structures in the head or neck. Isolated involvement of the bony skull, most of the dura, or most regions of brain parenchyma does not produce pain. Ref: guyton and hall textbook of medical physiology 12 edition page number: 687,688,689