trochlea

American  

[trok-lee-uh] / ˈtrɒk li ə /

noun

Anatomy.

plural

trochleae, trochleas

1. a pulleylike structure or arrangement of parts.

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trochlea British  

/ ˈtrɒklɪə /

noun

1. any bony or cartilaginous part with a grooved surface over which a bone, tendon, etc, may slide or articulate

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Etymology

Origin of trochlea

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

Example Sentences

A good example is the elbow joint, with the articulation between the trochlea of the humerus and the trochlear notch of the ulna.

From Textbooks • Jun. 19, 2013

The articulating surfaces of the distal humerus consist of the trochlea medially and the capitulum laterally.

From Textbooks • Jun. 19, 2013

However, the tendon of the oblique muscles threads through a pulley-like piece of cartilage known as the trochlea.

From Textbooks • Jun. 19, 2013

The angle of the tendon through the trochlea means that contraction of the superior oblique rotates the eye medially.

From Textbooks • Jun. 19, 2013

The radius articulates with the trochlea and the condyle, having appropriated a portion of the ulna, as is proved by the presence of the coronoid process, which belongs to the former.

From Artistic Anatomy of Animals by Cuyer, ?douard