Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An anatomical structure that resembles a pulley, especially the part of the distal end of the humerus that articulates with the ulna.
from The Century Dictionary.
- noun In anatomy and zoology, a pulley or pulley-like arrangement of parts, affording a smooth surface upon which another part glides.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Mach.), obsolete A pulley.
- noun (Anat.) A pulley, or a structure resembling a pulley
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy Structure resembling a
pulley , typically in reference to the area connecting the upper and lower arm.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Above the front part of the trochlea is a small depression, the coronoid fossa, which receives the coronoid process of the ulna during flexion of the forearm.
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Above the back part of the trochlea is a deep triangular depression, the olecranon fossa, in which the summit of the olecranon is received in extension of the forearm.
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It's a backdrop she knows expertly: Mending a fence, one cowhand has to "cast about for a stick or something to twist tight a diagonal cross-brace wire, but the only thing at hand was a cow's bleached leg bone with its useful trochlea head, which seemed made to jam fence wire tight."
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"Medial epicondyle, trochlea, greater and lesser tubercle, " he said.
City of Bones Connelly, Michael, 1956- 2002
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Because of the manner in which the patella functionates with the trochlea of the femur, comparatively little energy is required to prevent further flexion of the stifle joint.
Lameness of the Horse Veterinary Practitioners' Series, No. 1 John Victor Lacroix
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The section passes through the middle of the groove of the trochlea of the tibial tarsal bone. 1 and 2.
Lameness of the Horse Veterinary Practitioners' Series, No. 1 John Victor Lacroix
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Congenital displacement results from imperfect development of the external lip of the trochlea.
Common Diseases of Farm Animals R. A. Craig
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It usually communicates with the medial sac of the femerotibial joint cavity by a slit-like opening situated at the lowest part of the medial ridge of the trochlea.
Lameness of the Horse Veterinary Practitioners' Series, No. 1 John Victor Lacroix
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Frenulum: the spine, simple in males, compound in females, arising from the base of secondaries in many Lepidoptera, whose function it is to unite the wings in flight: in Cicada the triangular lateral piece on the mesonotum which connects with the trochlea: the anal area of secondaries and thus = tendo, q.v. Frenulum hook: in the males of frenate Lepidoptera, a hook or fold into which the frenulum is fitted.
Explanation of Terms Used in Entomology John. B. Smith
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In upward luxation, reduction is effected by attempting further extension of the stifle joint and at the same time the patella is pulled outward, off the internal rim of the trochlea.
Lameness of the Horse Veterinary Practitioners' Series, No. 1 John Victor Lacroix
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