Aery lying in Guyon's canal is:
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 Guyon's canal) into the palm. Ref: Schwaz's principle of surgery 9th edition, chapter 44.
Ulnar aery
Radial aery
Brachial aery
Subclan aery