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trochlea

[ trok-lee-uh ]

noun

, Anatomy.
, plural troch·le·ae [trok, -lee-ee], troch·le·as.
  1. a pulleylike structure or arrangement of parts.


trochlea

/ ˈtrɒklɪə /

noun

  1. any bony or cartilaginous part with a grooved surface over which a bone, tendon, etc, may slide or articulate
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of trochlea1

1685–95; < Latin: pulley block or sheave < Greek trochiléa, trochil ( e ) ía; akin to tróchilos sheave, runner, akin to tréchein to run
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Word History and Origins

Origin of trochlea1

C17: from Latin, from Greek trokhileia a sheaf of pulleys; related to trokhos wheel, trekhein to run
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Example Sentences

The trochlea (fig. 77, 5) at the distal end of the bone is a pulley-like surface, elevated at the sides and grooved in the middle.

It articulates with the external portion of the trochlea, while the ulna articulates with the internal portion.

The proximal end articulates with the trochlea, the distal end with the bones of the carpus.

The Knee Joint is a hinge formed by the condyles and trochlea of the femur, the patella, and the head of the tibia.

In the human skeleton, the internal lip of the trochlea descends lower than the external; and also lower than the condyle.

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