This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Interosseous membrane of forearm is piereced by? 
Select and explain. 
A. Brachial aery, B. Anterior interosseous aery, C. Posterior interosseous aery, D. Ulnar recurrent aery
B: Anterior interosseous aery
Answer: B: Anterior interosseous aery 
Explanation: Ans. is 'b' i.e., Anterior interosseous aery The anterior interosseous aery is the deepest aery on the front of forearm.It is one of the terminal branch of common interosseous aery, which in turn is a branch of ulnar aery.It is accompoined by anterior interosseous nerve, a branch of median nerve.It descends on the surface of the interosseous membrane between the FDP and FPL. It pierces the interosseous membrane at the upper border of the pronator quadratus to enter the extensor (dorsal) compament.Branches of anterior interosseous aery are :?Muscular branches : For deep muscles of front of forearm.Nutrient aery to radius and ulna.Median aery.