Trochlea
From Wikipedia, the free encyclopedia
Trochlea (Latin for pulley) is a term in anatomy. It refers to a grooved structure reminiscent of a pulley's wheel.
Most commonly, trochleae bear the articular surface of saddle and other joints:
- Trochlea of humerus
- Trochlear process of the Calcaneus
- The area where the tarsometatarsus articulates with the proximal phalanges in a bird's foot
It also can refer to structures which serve as a guide for muscles:
- Trochlea of superior oblique (see also superior oblique muscle). This use is the source of the name for the Trochlear nerve.
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