Interosseous membrane of forearm is piereced by

-The anterior interosseous nerve and vessels lie in close relation to the anterior surface of the interosseous membrane of forearm stretching between the interosseous borders of radius and ulna.At the upper margin of the pronator quaadratus, the anterior interosseous vessels pass through the interosseous membrane to enter the posterior compament of forearm. -The lower pa of the posterior surface of interosseous membrane is closely related to the anterior interosseous aery and posterior interosseous nerve.The posterior interosseous vessels enter the posterio compament through the gap between oblique cord and upper margin of the interosseous membrane. -reference; clinical anatomy for students ,problem solving appproach,neeat v kulkarni, page no.79