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Trochlea eye

Trochleitis is an inflammation of the trochlea and peritrochlear region. This disease may be isolated (occur alone or with migraine) or develop in association with an inflammatory or immunologic condition. Diagnosis is based on clinical findings and confirmed with radiologic images. A typical pain in the superior and inner angle of the orbital region is pathognomonic The trochlear nerve (/ˈtrɒklɪə/), also called the fourth cranial nerve or CN IV, is a motor nerve (a somatic efferent nerve) that innervates only a single muscle: the superior oblique muscle of the eye, which operates through the pulley-like trochlea.. The trochlear nerve is unique among the cranial nerves in several respects: It is the smallest nerve in terms of the number of axons it.

Description. The trochlea of superior oblique is a pulley structure in the eye.The tendon of the superior oblique muscle passes through it. Situated on the superior nasal aspect of the frontal bone, it is the only cartilage found in the normal orbit The trochlea is a fibrous pulley at the superior medial wall of the eye socket (kind of near the bridge of the nose). This pulley allows the superior oblique muscle to change its force of direction and work as an intorter Trochlea er en valseformet leddflate. Trochlea humeri er den valseformede leddflaten nederst på overarmsbenet (humerus) som danner leddforbindelse med albuebenet (ulna). Trochlea tali er den valseformete, øverste leddflaten på vristbenet (talus). The trochlea of superior oblique, for instance, acts as the eye's pulley. It is named for the muscle it guides, which is the superior oblique muscle. Also known as the obliquus oculi superior, it is responsible for depressing and rotating the eyeball, particularly when the eye is moved to the middle of the eye socket A fibrous loop in the orbit, near the nasal process of the frontal bone, through which passes the tendon of the superior oblique muscle of the eye. [L. pulley, fr. G. trochileia, a pulley, fr. trechō, to run

Flashcards - Anatomy of eye - Palpebrae Medial &Lateral

Trochlea definition is - an anatomical structure that is held to resemble a pulley; especially : the articular surface on the medial condyle of the humerus that articulates with the ulna Trochlea (Latin for pulley) is a term in anatomy.It refers to a grooved structure reminiscent of a pulley's wheel.. Related to joints. Most commonly, trochleae bear the articular surface of saddle and other joints: . Trochlea of humerus (part of the elbow hinge joint with the ulna); Trochlea of femur (forming the knee hinge joint with the patella); The trochlea tali in the superior surface of. Uten lårbens trochlea, ville patella være ute av stand til å opprettholde sin posisjon. Også kjent som patellar groove, er femoral trochlea delt inn i to deler, den mediale og laterale segmenter. Den proksimale delen, som er det området som er nærmest stammen, er en grunn fordypning, mens den fjerntliggende del er noe dypere

Trochleitis is inflammation of the superior oblique tendon trochlea apparatus characterized by localized swelling, tenderness, and severe pain. This condition is an uncommon but treatable cause of periorbital pain. The trochlea is a ring-like apparatus of cartilage through which passes the tendon of the superior oblique muscle. It is located in the superior nasal orbit and functions as a. It serves the superior oblique eye muscle and connects to the annular tendon. As a result, it processes brain signals to move the eyes up and down, and also outwards Although patients often incorrectly attribute headaches to excess use of their eyes, trochlear headaches are distinctly exacerbated by eye movement or reading. Neurologists will rarely encounter a patient with trochlear headache; unless the diagnosis is considered and review of brain imaging is focused on the area of interest, the opportunity for focused treatment of trochlear headache may be. When the trochlea is flat, or even possibly has a convex or dome shape, it is known as trochlear dysplasia which usually is referred to as an unstable kneecap. In these circumstances, the trochlea is not shaped normally, and the patella does not have the normal bony constraints to provide stability

The trochlea has the capitulum located on its lateral side and the medial epicondyle on its medial. It is directly inferior to the coronoid fossa anteriorly and to the olecranon fossa posteriorly. In humans, these two fossae, the most prominent in the humerus, are occasionally transformed into a hole, the supratrochlear foramen, which is regularly present in, for example, dogs I read there is a trochlea tendon above the eye. I have read of conditions called Trochleitis and Temporal Tendonitis. Off and on for about 3 years, I get this uncomfortable sensation in my right eye socket & brow bone that occurs for many weeks and then goes away for a couple months The trochlear nerve (cranial nerve IV) supplies one of the extraocular muscles: the superior oblique muscle. In this video, I discuss the anatomy and functio.. The. Trochlea. A. Study. of. the. Anatomy. and. Physiology. EUGENE. M.. HELVESTON,. MD,. WALTER. W.. MERRIAM,. MD,. FORREST. D.. ELLIS,. MD, Other articles where Trochlea is discussed: humerus: smooth articular surfaces (capitulum and trochlea), two depressions (fossae) that form part of the elbow joint, and two projections (epicondyles). The capitulum laterally articulates with the radius; the trochlea, a spool-shaped surface, articulates with the ulna. The two depressions—the olecranon fossa, behind and above the trochlea.

Anatomy and Movement of the Eye | Doctor Stock

trochlea definition: 1. a long, narrow, hollow space in a surface in the body that a bone or tendon can move against. Learn more That structure is called the trochlea, which is the Latin word for pulley; this is where the name of the trochlear nerve comes from. Anatomy Most of your nerves branch out like trees, with the limbs running all through your body, carrying sensory information to and from your brain, and enabling motor function (movement) in your muscles and other moving parts Om Trochlea Dysplasi. Dette (trochlea dysplasi) er den hyppigste og vigtigste årsag til at knæskallen går af led. Nedenfor kan du se 4 eksempler på MR scanninger, hvor et tværsnit på den øverste del af knæet viser en flad fure eller i værste fald det modsatte af en fure - nærmest en bakke The fourth cranial nerve controls the actions of one of the external eye muscles, the superior oblique muscle. This muscle runs from the back of the eye socket to the top of the eye. It passes through a loop of tissue near the nose known as the trochlea. It turns the eye inward and downward The trochlea of superior oblique is a pulley-like structure in the eye. The tendon of the superior oblique muscle passes through it. Situated on the superior nasal aspect of the frontal bone, it is the only cartilage found in the normal orbit. The word trochlea comes from the Greek word for pulley

The Trochlea of superior oblique is a pulley structure in the eye.The tendon of the superior oblique muscle passes through it. Situated on the superior nasal aspect of the frontal bone, it is the only cartilage found in the normal orbit.. Actions of the superior oblique muscle. In order to understand the actions of the superior oblique muscle, it is useful to imagine the eyeball as a sphere. trochlea (plural trochleas or trochleae) A structure resembling a pulley. In the elbow joint, the articular surface of the lower extremity of the humerus, grasped by the greater sigmoid cavity of the ulna. A pulley-like cartilage through which the superior oblique muscle of the eyeball passes

They can be associated with eye pain because the pain itself is in the eye, even though the pain is not from the eye. According to Dr. Digre, migraine is the most common disorder, affecting 20 percent of women and 10 percent of men. Migraines can cause pain in the eye or orbit, and they can occur with or without aura Trochleas obtained from fresh surgical specimens, autopsy material, and cadavers were studied by means of dissection, light microscopy, and electron microscopy (scanning and transmission). A bursa-like structure that has not previously been described lines the inner surface of the cartilaginous trochlea

Trochleitis - EyeWik

trochlea of superior oblique (muscle): a fibrous loop in the orbit, near the nasal process of the frontal bone, through which passes the tendon of the superior oblique muscle of the eye. Synonym(s): trochlea musculi obliqui superioris bulbi [TA A collection of disease information resources and questions answered by our Genetic and Rare Diseases Information Specialists for Trochlear dysplasi

Trochlear nerve - Wikipedi

  1. Results. Six eyes of 6 patients were included. In 4 patients the trochlea was reconstructed; in 2, the adhesion was removed. A significant improvement in the Hess chart scores was observed postoperatively in 5 of the 6 patients (P = 0.047).Binocular single vision test scores also significantly improved in 4 of 5 patients (P = 0.019).No iatrogenic superior oblique muscle paresis was observed in.
  2. Trochlea of superior oblique (see also superior oblique muscle), a mover of the eye which is supplied by the trochlear nerve, or fourth cranial nerve. This disambiguation page lists articles associated with the title Trochlea. If an internal link led you here, you may wish to change the link to point directly to the intended article
  3. trochlear nerve n. Either of the fourth pair of cranial nerves that originates in the midbrain and innervates a muscle of the eyeball. trochlear nerve (ˈtrɒklɪə) n (Anatomy) either one of the fourth pair of cranial nerves, which supply the superior oblique muscle of the eye ThesaurusAntonymsRelated WordsSynonymsLegend: Switch to new thesaurus Noun 1.

Trochlea - Trochlea - IMAIO

What and where is the trochlea? - TimRoot

Trochlea definition, a pulleylike structure or arrangement of parts. See more Trochlea anatomy. A fibrous loop in the orbit near the nasal process of the frontal bone through which passes the tendon of the superior oblique muscle of the eye. Trochlea of humerus part of the elbow hinge joint with the ulna trochlea of femur forming the knee hinge joint with the patella. The capitulum laterally articulates with the radius

trochlea - Store medisinske leksiko

  1. 1. Relating to a trochlea, especially the trochlea of the superior oblique muscle of the eye. SYN: trochlearis (1). 2. SYN: trochleiform. * * * troch·le·ar ər adj 1) of, relating to, or being a trochlea
  2. RECESSION OF THE TROCHLEA 1131 has been suggested.3 The same amount of pressure is used for a short period as is ordinarily used in most plastic cases in volving the lids for a much longer period with no eye damage. In fact the pressure is particularly applied over the region of the trochlea rather than over the entire eye in this dressing
  3. trochlea of the superior oblique muscle of the eye: übersetzung. Trochlea f musculi obliqui [oculi] superiorisf musculi obliqui [oculi] superiori
  4. 1. belonging to or connected with a trochlea. 2. Physiology pulley-like. Also, trochleariform.
  5. 'This notch articulates with the trochlea of the humerus to form the elbow joint.' More example sentences 'On the lateral aspect of the calcaneus, 20 mm posterior to the peroneal trochlea, the periosteum covering an 8 x 8 mm area was peeled, and two anchors were inserted into the calcaneus at least 8 mm apart.

What Is a Trochlea? (with pictures) - wiseGEE

Fachwörterbuch Medizin Englisch-Deutsch. 2013.. trochlea of the superior oblique muscle of the eye trochlea eye - Google Search. Simple Designs Muscle Challenges Eyes Google Search Simple Drawings Muscles. More information.. Introduction. The trochlea is attached to the anteromedial orbital roof. The tendon of the superior oblique muscle passes through the inside of the trochlea, which redirects it, thus becoming the functional origin of the superior oblique muscle for movement. 1 Trochlea injury has sometimes been reported during blepharoplasty2, 3, 4 and orbital surgery,5, 6 and following traumatic eyelid.

Trochlea definition of trochlea by Medical dictionar

The trochlea is located on the roof of the orbit medial and anterior to the eye and redirects the tendon of the superior oblique muscle to reach the eye from the anterior and medial direction. Unique among the muscles of the eye, the inferior oblique muscle arises from the maxilla on the medial floor of the orbit and inserts at an oblique angle on the inferior surface of the eye Background: The authors have observed a group of patients complaining of periorbital pain, emanating from the trochlear area, in absence of trochleitis or other orbital or systemic disease. All were previously diagnosed and treated as different types of headaches, but pain was not controlled until local treatment on the sore trochlea was performed Motor Function. The trochlear nerve innervates a single muscle - the superior oblique, which is a muscle of oculomotion.As the fibres from the trochlear nucleus cross in the midbrain before they exit, the trochlear neurones innervate the contralateral superior oblique.. The tendon of the superior oblique is tethered by a fibrous structure known as the trochlea, giving the nerve its name the trochlea behind my eye is somehow damaged, and the pain and soreness behind the eye in that area started the day of the surgery and has not lessened at all with time. every week or so, with the least bit of stress to the eye, as in reading or moving the eyeball around a lot, i get a 2 day ache in the trochlea area

Trochlea Definition of Trochlea by Merriam-Webste

Infobox Anatomy Name = PAGENAME Latin = trochlea musculi obliqui superioris bulbi GraySubject = GrayPage troch•le•ar [[t]ˈtrɒk li ər[/t]] adj. 1) anat. of, pertaining to, or connected with a trochlea 2) anat. phl (of a body part or function) pulleylike 3) bot (of a plant part) circular and contracted in the middle so as to resemble a pulley 4) ana n. pulley like structure of shoulder, thigh, or orbit of eye. ♦ trochleiform, trochlear, trochleariform, trochleate, a. like a pulle The superior oblique muscle, therefore, originates functionally from the trochlea at the superior medial orbital rim and inserts on the top of the globe behind its equator. When the eye is in adduction, this muscle exerts a more or less direct downward pull and depresses the eye The superior oblique muscle is one of the 6 extraocular muscles that control eye movements.It abducts, depresses and internally rotates the eye. Summary. innervation: trochlear nerve (CN IV); origin: lesser wing of sphenoid bone and is outside of the annulus of Zinn located superomedially.; course: tendon passes through the cartilaginous trochlea of the superior oblique located superiorly on.

1. A structure serving as a pulley. 2. A smooth articular surface of bone upon which another glides. [L. pulley, fr. G. trochileia, a pulley, fr. trecho, to run] t. Trochlea anatomy. orbit near the nasal process of the frontal bone through which passes the tendon of the superior oblique muscle of the eye. The articular surface on the medial condyle of the humerus that articulates with the ulna. And also lower than the condyle trochlearis: ( trok'lē-ăr ), 1. Relating to a trochlea, especially the trochlea of the superior oblique muscle of the eye. Synonym(s): trochlearis (1) 2. Synonym(s): trochleifor Which of the extrinsic eye muscles passes through the trochlea? a) medial rectus muscle b) inferior oblique muscle c) lateral rectus muscle d) superior oblique muscle. d) superior oblique muscle. The area of the retina that contains a high density of photoreceptors and enables us to focus on a particular object is called _____

Information on the trochlea of humerus by the AnatomyZone daily feed. Subscribe to learn interesting facts about the human body every day Cochlea definition is - a hollow tube in the inner ear of higher vertebrates that is usually coiled like a snail shell and contains the sensory organ of hearing

Trochlea synonyms trochlea pronunciation trochlea translation english dictionary definition of trochlea. The capitulum laterally articulates with the radius. The trochlea has the capitulum located on its lateral side and the medial epicondyle on its medial. A structure serving as a pulley. A smooth articular surface of bone on which another glides Start studying Extrinsic eye muscles. Learn vocabulary, terms, and more with flashcards, games, and other study tools

Trochlea - Wikipedi

  1. in İngilizce İngilizce sözlükte anlamı {i} smooth body part resembling a pulley on which another body part slides (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.
  2. Calling this a syndrome is a misnomer in that the problem is isolated to the eye—specifically the superior oblique muscle/tendon and the trochlea. It is a mechanical problem where the superior oblique muscle/tendon is unable to freely pass through the trochlea and becomes restricted
  3. g the knee hinge joint with the patella
  4. Human eye - Human eye - Extraocular muscles: Six muscles outside the eye govern its movements. These muscles are the four rectus muscles—the inferior, medial, lateral, and superior recti—and the superior and inferior oblique muscles. The rectus muscles arise from a fibrous ring that encircles the optic nerve at the optic foramen, the opening through which the nerve passes, and are attached.

Hva er en Femoral Trochlea? - notmywar

  1. trochlea of the superior oblique muscle of the eye. Trochlea f musculi obliqui [oculi] superioris. Fachwörterbuch Medizin Englisch-Deutsch.
  2. trochlea \trochle*a\ (?), n. [l., a case or sheaf containing one or more pulleys, gr. &?;. see trochilics.] 1. (mach.) a pulley. [obs.] 2. (anat.) 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.
  3. Most commonly trochleae bear the articular surface of saddle and other joints. The superior oblique muscle has two bellies one that runs from the sphenoid bone at the back of the orbit anteriorly towards the trochlea loop of fascia on the frontal bone and a second that runs from the trochlea posterior and laterally to attach to the back of the eye
  4. The eyes rapidly scan the area using saccadic eye movements, or saccades. Essentially, saccades are rapidly alternating eye movements (where the eyes are moving anywhere between 200 to 700 degrees per second) from one point to the other. The eyes stop only for a short period of time during which the fovea will concentrate on these points

Trochleitis - Wikipedi

  1. n trochlea In anatomy and zoology, a pulley or pulley-like arrangement of parts, affording a smooth surface upon which another part glides. Specifically— A fibrous loop in the upper inner corner of the orbit of the eye, through which runs the tendon of the superior oblique muscle of the eyeball
  2. The trochlear nerve is the fourth cranial nerve and is the motor nerve of the superior oblique muscle of the eye. It can be divided into four parts: nucleus and an intraparenchymal portion cisternal portion cavernous sinus portion orbital..
  3. From the trochlea, the tendon takes a sharp posterolateral turn before inserting onto the posterio-superolateral scleral surface of the eye. This insertion is located behind the equator of the eyeball, between the attachments of the superior rectus and lateral rectus muscles
  4. The Trochlea Nerve (cranial nerve 4) controls the superior oblique muscle of the eye. It turns the eye laterally and downwards. What bones does the ulna articulate with
  5. Synonyms for trochlea in Free Thesaurus. Antonyms for trochlea. 3 synonyms for trochlear: fourth cranial nerve, trochlear nerve, trochlearis. What are synonyms for trochlea
  6. Trochlea sentence examples:1.damage to the Trochlea could occur, as the periosteum is elevated from bone or during healing.2.the data of this series suggests that this injury is more common in children of older age and should be differentiated from slipped epiphysis of humeral Trochlea, transcondylar fracture and elbow dis
Eom ppt

The fulcrum in this case would be your elbow joints. more specifically the trochlea and capitulum on the humerus which articulate with the radius and uln Fourth nerve palsies are often congenital. An anomalous superior oblique tendon, an anomalous site of its insertion, or a defect in the trochlea are now recognized as causes of some congenital fourth nerve palsies; similarly, some cases of presumed congenital fourth nerve palsy are secondary to a benign tumor (eg, schwannoma) of the fourth nerve In all cases, the site of restricted movement was identified, after which either the trochlea was reconstructed or the trochlear adhesion was removed. Surgical results were assessed by means of the pre- and postoperative Hess chart scores and binocular single vision test scores. RESULTS: Six eyes of 6 patients were included Orbit (anterior view) The eyes are essential for our daily experience, since about 70% of information we gather is by seeing.They are placed within the orbits, two cavities in the upper face, in the anterior surface of the head.. Besides the eyes, the orbits host several structures that support the eyeballs, including muscles, vessels, nerves and a gland trochlear nerve - either of the two cranial nerves on either side that control the superior oblique muscles of the eyes fourth cranial nerve , trochlear , trochlearis cranial nerve - any of the 12 paired nerves that originate in the brain ste

(n.) 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 The eye's major blood supply comes from the ophthalmic artery. The lateral muscular branch of the ophthalmic artery supplies the lateral rectus, Superior Oblique muscle Body of sphenoid above and medial to optic canal Winds around trochlea at superomedial part of orbit. passes through a fibrocartilagenous pulley known as the trochlea; when the eye is adducted, this muscle moves the cornea inferiorly superior pharyngeal constrictor medial pterygoid plate, pterygoid hamulus, pterygoma ndibular raphe, mylohyoid line of mandible pharynge al tubercle and midline pharynge al raphe constricts the pharyngeal cavity vagus (X), via the pharyngeal plexus ascending. Trochlea (n.A pulley. (n.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 The trochlear apparatus of the eye is a cartilaginous structure with a synovium-lined sheath that permits unimpeded movement of the superior oblique muscle . One limitation of our study was that we could not clarify the accurate locations of calcifications, although cartilage, the synovial sheath, and the tendon itself are all possible locations [ 3 - 7 ]

The anatomical origin is behind the eye on the lesser wing of the sphenoid bone, but the superior oblique muscle acts a pully, and loops back trough a connective tissue sling called the trochlea. Even though it is positioned above the eye, its unique use of the trochlea gives it a primary function is to intort the eye, and secondary functions of depression and abduction Supratrochlear Nerve - EtymologySupratrochlear means above the trochleaThe term trochlea means pulley in Latin Specifically, the trochlea referred to is a loop inside the orbit of the eye, through which the tendon of the superior oblique muscle passes.

Muscles of the eyeAves - Birds

A pulley. [Obs.] [1913 Webster] 2. (Anat.) 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 trochlea. An anatomic part or structure that resembles a pulley, either in form, as that of the humerus or talus; or in function, as that of the superior oblique muscle of the eye. This entry is located in the following unit: troch-, trocho- + A unit related to. Muscles of the eye Trochlea Superior oblique Inferior rectus Inferior oblique from BIOLOGY 20 at Chaffey Colleg Patients with orbital myositis are typically diplopic, having restricted eye movements and positive forced ductions. 1 In cases occurring secondary to Browns syndrome, the trochleitis may be congenital or acquired. In the congenital form, a click syndrome impairs movement of the superior oblique tendon through the trochlea Trochlea - Trochlea. Anatomical hierarchy. Organ of vision > Accessory organs of the eye > Muscles of the eyeball > Dorsal oblique > Trochlea Translations. Description. There is no description for this.

Flashcards - Extra-Ocular Muscles - Extra-Ocular MusclesTraumatic Patellar Dislocation - Hughston Clinicorbit at University of Bridgeport - StudyBlueOcular Torsional Changes in Anterior Plagiocephaly

Definition of trochlea. n. - A pulley. n. - 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 While cranial nerves III, IV and VI are clinically examined concurrently, the clinician must understand the specific anatomical functions for each nerve trochlea ˻ Դϴ . ˻ ߿ Tab Ű ø ˻ â õ˴ϴ . ʼ п ˻ ˻ : 1 :

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