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a passageway of varying length through a solid body, completely enclosed except for the open ends, permitting entrance and exit.
carpal tunnel the osseofibrous passage for the median nerve and the flexor tendons, formed by the flexor retinaculum and the carpal bones; see also carpal tunnel syndrome.
flexor tunnel carpal tunnel.
tarsal tunnel the osseofibrous passage for the posterior tibial vessels, tibial nerve, and flexor tendons, formed by the flexor retinaculum and the tarsal bones; see also tarsal tunnel syndrome.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The osteofibrous canal in the tarsal area bounded by the flexor retinaculum and tarsal bones. The posterior tibial vessels, tibial nerve, and flexor tendons pass through this tunnel.
See also: tunnel
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