| trochlea | 1. <machinery> A pulley. 2. <anatomy> A pulley, or a structure resembling a pulley; as, the trochlea, or pulleylike end, of the humerus, which articulates with the ulna; or the trochlea, or fibrous ring, in the upper part of the orbit, through which the superior oblique, or trochlear, muscle of the eye passes. Origin: L, a case or sheaf containing one or more pulleys, Gr. See Trochilics. Source: Websters Dictionary (01 Mar 1998) |
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| trochlea femoris | The groove formed anteriorly between the anterosuperior portions of the femoral condyles that accommodates the patella. Synonym: facies patellaris femoris, trochlea femoris. (05 Mar 2000) |
| trochlea fibularis calcanei | An alternate term for peroneal trochlea of calcaneus. (05 Mar 2000) |
| trochlea humeri | The grooved surface at the lower end of the humerus articulating with the trochlear notch of the ulna. Synonym: trochlea humeri, pulley of humerus. (05 Mar 2000) |
| trochlea muscularis | A fibrous loop through which the tendon of a muscle passes; the intermediate tendon of the digastric and omohyoid muscles pass through such a trochlea. Synonym: trochlea muscularis. (05 Mar 2000) |
| trochlea of humerus | The grooved surface at the lower end of the humerus articulating with the trochlear notch of the ulna. Synonym: trochlea humeri, pulley of humerus. (05 Mar 2000) |
| trochlea of the talus | The rounded articular surface of the talus articulating with the distal ends of the tibia and fibula. Synonym: trochlea tali, pulley of talus. (05 Mar 2000) |
| trochlea peronealis | A projection from the lateral side of the calcaneus between the tendons of the peroneus longus and brevis. Synonym: trochlea peronealis, trochlea fibularis calcanei, peroneal pulley, processus trochlearis, spina peronealis, trochlear process. (05 Mar 2000) |
| trochlea phalangis | An alternate term for head of phalanx, head of phalanx. (05 Mar 2000) |
| trochlea tali | The rounded articular surface of the talus articulating with the distal ends of the tibia and fibula. Synonym: trochlea tali, pulley of talus. (05 Mar 2000) |
| trochlear | <anatomy> Shaped like, or resembling, a pulley; pertaining to, or connected with, a trochlea; as, a trochlear articular surface; the trochlear muscle of the eye. Trochlear nerve. See Pathetic nerve, under Pathetic. Origin: L. Trochlea block or pulley. Source: Websters Dictionary (01 Mar 1998) |
| trochlear fossa | A shallow depression in the roof of the orbit close to the medial margin to which is attached the pulley for the superior oblique tendon. Synonym: fovea trochlearis, fossa trochlearis, trochlear fossa, trochlear pit. (05 Mar 2000) |
| trochlear fovea | A shallow depression in the roof of the orbit close to the medial margin to which is attached the pulley for the superior oblique tendon. Synonym: fovea trochlearis, fossa trochlearis, trochlear fossa, trochlear pit. (05 Mar 2000) |
| trochlear nerve | <anatomy, nerve> The trochlear nerve controls an extraocular muscle. Lesions of this nerve will result in rotation of the eyeball upward and outward (and double vision). Synonym: cranial nerve IV. (27 Sep 1997) |
| trochlear notch | The large saemicircular notch at the proximal extremity of the ulna between the olecranon and coronoid processes that articulates with the trochlea of the humerus. Synonym: incisura trochlearis, incisura semilunaris ulnae, semilunar notch. (05 Mar 2000) |
| peroneal trochlea of calcaneus | A projection from the lateral side of the calcaneus between the tendons of the peroneus longus and brevis. Synonym: trochlea peronealis, trochlea fibularis calcanei, peroneal pulley, processus trochlearis, spina peronealis, trochlear process. (05 Mar 2000) |
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