trochlear


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to trochlear: trigeminal, hypoglossal, abducens

troch·le·ar

 (trŏk′lē-ər)
adj.
1. Of, resembling, or situated near a trochlea.
2. Of or relating to the trochlear nerve.

troch•le•ar

(ˈtrɒk li ər)

adj.
1. of, pertaining to, or connected with a trochlea.
2. (of a body part or function) pulleylike.
3. (of a plant part) circular and contracted in the middle so as to resemble a pulley.
n.
4. Also, troch′lear nerve`. either one of the fourth pair of cranial nerves, consisting of motor fibers that innervate certain eye muscles.
[1675–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.trochlear - either of the two cranial nerves on either side that control the superior oblique muscles of the eyestrochlear - either of the two cranial nerves on either side that control the superior oblique muscles of the eyes
cranial nerve - any of the 12 paired nerves that originate in the brain stem
References in periodicals archive ?
OATs are good for eyes###OculomotorAbducent and Trochlear nerves supply eye muscles
Abnormal ocular alignment frequently results from damage to the intranuclear portion of the gaze system, including: cranial nerves (CN) III (oculomotor), IV (trochlear), and VI (abducens), or the myoneural junction or extraocular muscles they innervate.
In people and their pets, the patella sits in a groove of bone called the "trochlear groove" and this allows the patella to slide up and down when the stifle bends and flexes but it prevents the patella from moving side to side.
However, based on "CRI-TOE", one would expect appearance of the medial epicondyle (in normal position) prior to the appearance of the trochlear ossification center (Figure 2).
Anatomically [Figure 1], the SOF, which is a pear-shaped structure with the broadest part at the nasal side, is bound laterally by the greater wing of the sphenoid, medially by the lesser wing of sphenoid, and superiorly by the frontal bone, lying at the apex of the orbit and at the border between the roof and the lateral orbital wall.[10] The SOF serves as a pathway that allows communication between the orbit and the middle cranial fossa, thereby transmitting the oculomotor, trochlear, and abducens nerves (cranial nerves III, IV, and VI), as well as the first three branches of the trigeminal nerve: the frontal, lacrimal, and nasociliary nerves.[11]{Figure 1}
This represents an anterior to posterior line that follows the deepest point of the trochlear groove.
When using the recommended location as the entry point for the IM rod, the mean potential error differed significantly from the femoral trochlear groove (the potential error of IM in males in coronal plane: 0.93[degrees] [+ or -] 0.24[degrees] vs.
Interactions (menarche yes/no by PFPS no/one leg/both legs) were found for BMI (p = 0.044; [[eta].sup.2] = .187), trochlear cartilage thickness (p = 0.020; [[eta].sup.2] = 0.121) and tip of patella - trochlear groove distance (p = 0.024; [[eta].sup.2] = .150).
Congenital Fibrosis of the Extraocular Muscles (CFEOM) is characterized by congenital non-progressive ophthalmoplegia with or without ptosis affecting part or all of the oculomotor and/or the trochlear nucleus with its related nucleus and nerve (1).
Initial radiographs in true AP, lateral, axial and skyline views were taken to see patellar position, Blumensaat line, Insall-Salvati index, trochlear depth (Dejour), patellar height (Caton Deschamps), Blackburne-Peel ratio, crossing sign and trochlear bump.
The main indication for the procedure is acquired trochlear nerve palsy following closed head injury, particularly due to traffic accidents.