The ulnar canal or ulnar tunnel (also known as Guyon's canal or tunnel) is a semi-rigid longitudinal canal in the wrist that allows passage of the ulnar artery and ulnar nerve into the hand.
The ulnar canal or ulnar tunnel (also known as Guyon's canal or tunnel) is an elongated passageway in the wrist that allows for the passage of the ulnar artery and ulnar nerve into the hand.