ulnar canal


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ulnar canal

[TA]
passageway through the transverse carpal ligament by which the ulnar nerve and artery enter the palm; it is closely related to the pisiform and the hook of the hamate.
Synonym(s): canalis ulnaris [TA], canal of Guyon
References in periodicals archive ?
13,14) Apart from this branch, the bulk of the ulnar nerve passes through the ulnar canal (Guyon's canal) at the wrist and divides into a superficial branch which provides motor innervation to the palmaris brevis and skin sensation to the palmar surface of D5 and medial half of D4.
During routine dissection of an old male cadaver we observed an anomalous muscle was found to take it's origin from the antebrachial fascia and flexor retinaculum, traversed ulnar canal (Guyon's) superficial to ulnar vessels and nerves to reach the proximal part of abductor digiti minimi.
Guyon's canal syndrome also called as the ulnar tunnel syndrome, caused due to compression of the ulnar nerve as it passes through the ulnar canal (Guyon's) is a well recognized entity (Cem Bozkurt, 2005).