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Related to tunnel: Tunnel diode


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.


An elongated passageway, usually open at both ends.
Farlex Partner Medical Dictionary © Farlex 2012


An elongated passageway, usually open at both ends.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


A narrow channel or passageway.
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carpal tunnel

The canal in the wrist bounded by osteofibrous material through which the flexor tendons and the median nerve pass. Synonym: flexor tunnel See: illustration

flexor tunnel

Carpal tunnel.

inner tunnel

The triangular canal lying between the inner and outer pillars of Corti in the organ of Corti of the inner ear.

tarsal tunnel

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.
Medical Dictionary, © 2009 Farlex and Partners


An elongated passageway, usually open at both ends.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about tunnel

Q. I'm looking for natural/organic ways to deal with carpal tunnel syndrome. My Boss has Carpal Tunnel syndrome. I'm looking for some natural remedies to help her ease the pain.

A. I have found that MSM (GNC brand) 1500mg per day works for me. I talked to an Orthopedic Surgeon asking him why it works... he said "they really don't know why it works, but it works for many of my patients". When I stop taking my MSM the symptoms return so it is not a cure.

I have tried other brands of MSM and found the GNC brand works the best for me. It takes about 2 weeks to begin to see the results and several more weeks to get the full affect.

Q. what can i do to help my capentunnel without surgery?

A. a good friend of mine is a bike racer and did the surgery- it's not a bad solution as it seems...but you can try and put on a splint to stabilize the wrist. The splint is worn at night for several weeks. If this does not help, you may need to wear the splint during the day. Hot and cold compresses may also be recommended.

There are many ergonomic devices that can be used in the workplace to reduce the stress placed on the wrist. These include special keyboards, cushioned mouse pads, and keyboard drawers. Make sure the keyboard is low enough so that the wrists aren't bent upward during typing. You may also need to make changes in your work duties or recreational activities.

More discussions about tunnel
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References in classic literature ?
He had gone forward but a short distance, when, to his chagrin, a wall of masonry barred his farther progress, closing the tunnel completely from top to bottom and from side to side.
He raised the candle above his head and peered across the black void, and there upon the opposite side he saw the continuation of the tunnel; but how was he to span the gulf?
Surely some merciful Power guided our footsteps to the jackal hole, for that is what it must have been, at the termination of the tunnel. And see, yonder on the mountains the dawn we had never thought to look upon again was blushing rosy red.
It seemed to us that we had escaped Death in the darkness of the treasure chamber only to meet him in the darkness of the tunnels.
Leaping, as he thought, to the exact centre of the tunnel, he held his sword point ready on a line with the beast's chest.
Either he had not placed himself in the centre of the tunnel, or else the blinded banth had erred in its calculations.
It seemed to have been tunneled through the earth, the sides being lined by either slabs of stone, or walls made by a sort of concrete.
The tunnel through which I crawled was low and dark.
Now I went with the utmost caution, and a moment later a sharp turn in the tunnel brought me to an opening into a large, brilliantly lighted chamber.
His foot went through the tunnel nearly upon the top of Peter Rabbit and Benjamin, but fortunately he thought that it was some more of Tommy Brock's work.
They crept out of their tunnel, and hung about amongst the rocks and bushes, listening anxiously.
I did so, and eking out the flicker with a scrap of paper from my pocket, I made good my retreat to the narrow tunnel. But I had scarce entered this when my light was blown out and in the blackness I could hear the Morlocks rustling like wind among leaves, and pattering like the rain, as they hurried after me.