<prompt> Aery lying in Guyons canal is:Ulnar aeryRadial aeryBrachial aerySubclan aery  <response>: The ulnar aery travels deep to the FCU muscle in the forearm. When the FCU becomes tendinous, the ulnar aery resides deep and slightly radial to it. At the wrist, the aery travels between the hamate and pisiform bones superficial to the transverse carpal ligament known as Guyons canal into the palm. Ref: Schwazs principle of surgery 9th edition, chapter 44. 