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trochlea
‖ trochlea Anat. (ˈtrɒkliːə) [L. trochlea: cf. Gr. τροχιλία, -χιλέα, -χαλία sheaf of a pulley.] A pulley-like structure or arrangement of parts, with a smooth surface upon which some other part, as a bone or tendon, slides; spec. (a) the surface of the inner condyle of the humerus at the elbow-joint...
Oxford English Dictionary
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Trochlea
Trochlea (Latin for pulley) is a term in anatomy. It refers to a grooved structure reminiscent of a pulley's wheel. the ulna)
Trochlea of femur (forming the knee hinge joint with the patella)
The trochlea tali in the superior surface of the body of talus (part of
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Trochlea of humerus
The trochlea has the capitulum located on its lateral side and the medial epicondyle on its medial. During elbow flexion, the vertical anterior part of the trochlea keeps the upper arm and forearm aligned (when viewed in front).
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trochlear
trochlear, a. (ˈtrɒkliːə(r)) [ad. mod.L. trochleār-is, f. trochlea: see prec. and -ar.] 1. Anat. Belonging to or connected with a trochlea, as a muscle, nerve, etc.; forming a trochlea, pulley-like, as a surface of a bone, etc. trochlear fossa, t. spine, parts of the frontal bone connected with the ...
Oxford English Dictionary
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Trochlea of superior oblique
The trochlea of superior oblique is a pulley-like structure in the eye. The tendon of the superior oblique muscle passes through it. The word trochlea comes from the Greek word for pulley.
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Oxymeris trochlea
Oxymeris trochlea is a species of sea snail, a marine gastropod mollusc in the family Terebridae, the auger snails.
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Trochleitis
The trochlea is a ring-like apparatus of cartilage through which passes the tendon of the superior oblique muscle. It was unclear whether the inflammation involved the trochlea itself, or the tissues surrounding the trochlea.
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Trochlear fovea
Attached to the trochlear fovea is the trochlea of the superior oblique muscle.
References
Bones of the head and neck
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Humeroulnar joint
It is composed of two bones, the humerus and ulna, and is the junction between the trochlear notch of ulna and the trochlea of humerus. Owing to the obliquity of the trochlea of the humerus, this movement does not take place in the antero-posterior plane of the body of the humerus.
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Eostrix
Differences in the trochleas (grooves) of the lower end of the tarsometatarsus set it apart from living owls, namely a groove in the trochlea for digit 2, a deeper posterior groove in a relatively narrow trochlea for digit 3, and an unusually rounded trochlea for digit 4.
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Coronoid fossa of the humerus
Superior to the anterior portion of the trochlea is a small depression, the coronoid fossa, which receives the coronoid process of the ulna during flexion
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Supratrochlear artery
Anatomy
It branches from the ophthalmic artery near the trochlea of the superior oblique muscle in the orbit. Origin
The supratrochlear artery branches from the ophthalmic artery in the orbit near the trochlea of the superior oblique muscle.
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Capitulum of the humerus
Lepidosauromorpha
Lepidosaurs show a distinct capitellum and trochlea on the centre of the ventral (anterior in upright taxa) surface of the humerus at Archosauromorpha
In non-avian archosaurs, including crocodiles, the capitellum and the trochlea are no longer bordered by distinct etc.- and entepicondyles
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Talus bone
However, because the trochlea is wider in front than at the back (approximately 5–6 mm) the stability in the joint vary with the position of the foot: Behind the trochlea is a posterior process with a medial and a lateral tubercle separated by a groove for the tendon of the flexor hallucis longus.
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Phoeniconaias siamensis
However the Li fossils could be referred to the genus Phoeniconaias based on the anatomy of the trochlea of the tarsometatarsus. The trochlea of the third toe shows the sharpened point typical for the genus and the distal foramen are located above the intertrochlear notch.
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