Annular ligament is a U shaped ligament that attaches to anterior and posterior portion of sigmoid notch (radial notch) of proximal ulna and encircles the radial head. Anterior insertion: taut in supination. Posterior insertion: taut in pronation. The 3 other ligaments form a triangle with 3 points (lateral epicondyle, supinator crest of. . what is the origin of a muscle. less moveable, considered to be the starting point of the muscle posterior cruciate ligament oblique popliteal arcuate popliteal. anterior cruciate ligament (ACL) posterior cruciate ligament (PCL) prevents posterior displacement of tibia. lateral meniscus. on the side of the fibula
posterior surface of medial condyle of tibia. Semimembranosus action. flexion at the knee, extension and medial/internal rotation at the hip. gastrocnemius origin. femoral condyles. gastrocnemius insertion. calcaneus. gastrocnemius action. plantar flexion and ankle, inversion of foot, flexion at knee Two major ligaments or thickenings of the posterior capsule exist: the arcuate popliteal ligament and the oblique popliteal ligament (Fig. 10.16). A variety of musculoskeletal disorders can create marked hyperextension at the knee as the result of an imbalance of forces The Deep medial ligament (dMCL) is divided into two, the meniscofemoral and meniscotibial ligaments. The origin of the meniscofemoral comes from the femur just distal to the superficial medial collateral, inserting into the medial menisci. The meniscotibial ligament is thicker and shorter
including the deep MCL, posterior oblique ligament (POL), and semimembranosus, are the key components providing valgus stability to the knee. Medial-sided in-juries involving the superﬁcial MCL constitute the most common ligamentous injury of the knee.1 The superﬁ-cial MCL femoral origin is located 3.2 mm proximal an The posterior oblique ligament (POL) is part of the posterior third of the joint capsule and is formed by the superficial, the tibial, and the capsular arms . The POL maintains medial stability and resists anteromedial tibial subluxation. but the ligament is still closely attached to the femoral and tibial bone at its origin and insertion.
This ligament is in relation with the triceps brachii and flexor carpi ulnaris and the ulnar nerve, and gives origin to part of the flexor digitorum superficialis The Posterior Abdominal Wall. The posterior abdominal wall is a complex region of anatomy. It is formed by the lumbar vertebrae, pelvic girdle, posterior abdominal muscles and their associated fascia. Major vessels, nerves and organs are located on the inner surface of the posterior abdominal wall The inferior rectus muscle is a narrow, strap-shaped muscle of the orbit that extends over the floor of the orbit. Alike most of the extraocular muscles, the inferior rectus muscle originates from the common tendinous ring, also called the annulus of Zinn, that is found in the posterior pole of the orbit encircling the margins of the optic canal ORIGIN Deep part (horizontal):supinator crest and fossa of ulna. Superficial part (downwards): lateral epicondyle and lateral ligament of elbow and annular ligament: INSERTION Neck and shaft of radius, between anterior and posterior oblique lines: ACTION Supinates forearm. Only acts alone when elbow extended: NERVE Posterior interosseous nerve.
ORIGIN Lumbar fascia, anterior two thirds of iliac crest and lateral two thirds of inguinal ligament: INSERTION Costal margin, aponeurosis of rectus sheath (anterior and posterior ), conjoint tendon to pubic crest and pectineal lin The posterior cruciate ligament is located in the backside of the knee joint. Like the Anterior cruciate ligament (ACL), the PCL is intracapsular but 'extra synovial,' which means it is not surrounded by synovial fluid, but it has an adequate blood supply. The PCL is shorter and less oblique than the ACL. The cross-sectional area of the PCL. Origin: Insertion: Action: Nerve Supply: biceps femoris, long head: ischial tuberosity: head of fibula: flexes and laterally rotates leg, extends thigh: tibial part of sciatic nerve: biceps femoris, short head: shaft of femur: head of fibula: flexes and laterally rotates leg: common peroneal nerve: semitendinosus: ischial tuberosity: upper part.
The posterior oblique ligament (POL) is the main component of the posteromedial corner (PMC) of the knee and plays a crucial role in acting as a secondary restraint against trans Posterior to the cruciate ligaments is the oblique popliteal ligament. Laterally, a prolongation from the iliotibial band fills in the interval between the oblique popliteal and the fibular collateral ligaments, and partly covers the latter External Oblique Lower 8 ribs Iliac crest, linea alba Compress abdomen; both sides flex vertebral column, one side (unilateral contraction) will rotate vertebral column to opposite side Lower 5 intercostal, iliohypogastic and ilioinguinal Internal Oblique Lumbar fascia, iliac crest and lateral half of inguinal ligament An MR imaging classification of posterior medial meniscal root ligament lesions has been recently described that is dedicated to the posterior root of the medial meniscus. The medial meniscal root ligament has an osseous insertion on the tibial to the posterior root of the lateral meniscus can be subjectively difficult to evaluate.
Origin: lateral and posterior aspect of ischial tuberosity Insertion: posterior aspect of the medial condyle of tibia, medial collateral ligament, oblique popliteal ligament and popliteus muscle Function: pulls the ischium inferiorly and anteriorly, rotating the iliac crest posteriorl Deep medial collateral ligament •Two bands of thickened capsular tissue •Meniscofemoral ligament: longer, attaches distal and deep to TCL origin •Meniscotibial ligament: shorter and thicker, attaches distal to tibial cartilage •Blends posteriorly with the capsular arm of the posterior oblique ligament LaPrade R. et al. JBJS 2007. . METHODS Insertions of the sMCL and POL were identified and marked in 22 unpaired human cadaveric knees. The surface area, location, positional relations, and morphology of the sMCL and POL insertions and related osseous structures. External oblique Internal Oblique hypomere, thoracic t lumbar ventral rami hypomere, thoracic+ lumbar ventral rami origin- posterolateral ribs t sternum origin- iliac crest,inguinal ligament,thoracolumba insertion- iliac crest,tinea alba (mostly), inguinal ligament Insertion. anterolateral ribs,lineaalba ta orientation.
The oblique popliteal ligament (posterior ligament) is a broad, flat, fibrous band, formed of fasciculi separated from one another by apertures for the passage of vessels and nerves.. Contents. Additional images; References; External links; It is attached above to the upper margin of the intercondyloid fossa and posterior surface of the femur close to the articular margins of the condyles, and. Layer 2: SMCL and Posterior Oblique Ligament. The SMCL is a well-defined structure that spans the medial joint line from the femur to tibia. According to LaPrade and coworkers, 28 the SMCL does not attach directly to the medial epicondyle of the femur, but is centered in a depression 4.8 mm posterior and 3.2 mm proximal to the medial epicondyle center Appears as a single round ligament but consists of two major parts; rotates 90° from an antero-posterior alignment at femoral origin to medial-lateral insertion at posterior tibia Anterolateral bundle: Bulk of ligament, taut in flexion, lax in extension; Posteromedial (oblique) bundle: Taut in extension, lax in flexio As would be expected, the more pregnancies a woman has, the higher her chances of SI joint problems. Between the 1st and 2nd transverse tubercles of the sacrum and iliac tuberosity. Weakness, numbness, or the loss of a related reflex may indicate nervous system damage.The current gold standard for diagnosis of sacroiliac joint dysfunction emanating within the joint is sacroiliac joint.
4. inferior oblique. These are mainly postural muscles and all the above four muscles are innervated by subooccipital nerve ( posterior / dorsal ramus of C1 ) Rectus capitis posterior major - Origin. from the spinous process of C2 ( axis ) Rectus capitis posterior major-Insertion. into lateral part of the inferior nuchal line of occipital bone Discuss the origin, insertion nerve and action of the flexor-pronator muscles of the forearm (30 marks) Other ligaments of shoulder complex not directly at glenohumeral joint: posterior oblique component —> undercuts infraspinatus at posterior portion of tuberosit The posterior fibers of the SMCL overlying the medial joint line, both above and below the joint, change orientation from vertical to a more oblique pattern that forms a triangular structure with its apex posterior, 4, 30 eventually blending with the fibers of the posterior oblique ligament (POL; Fig. 1-4).LaPrade and coworkers 28 described two anatomic attachment sites of the SMCL on the tibia Flex arm at glenohumeral joint Muscles of posterior compartment: Muscle Origin Insertion Innervation Action Triceps brachii - Long head - infraglenoid tubercle. Medial head - posterior surface of humerus inferior to radial groove; Lateral head - posterior surface of humerus superior to radial groove; Olecranon Radial nerve - Extend forear .
Anterior border is the posterior margin of external oblique Posterior border is the anterior margin of lat dorsi Origin and insertion of the inguinal ligament of Poupart The edge of the ligament is inrolled. The internal oblique and transverses muscles arise from the lateral part of this gutter 1 Internal Oblique muscle • Origin: - Thoracolumbar fascia, - anterior 2/3 of iliac crest, - lateral half of inguinal ligament. • Btn external oblique and Transverse. • Insertion: - Inferior borders of 10 th to 12 th ribs, - linea alba, - pecten pubis via conjoint tendon • Action: Compress and support abdominal viscera, flex. Oedema with thickening of the lateral collateral ligament and partial disruption of the fibres are present at the femoral origin (L). The posterior capsule and the oblique popliteal ligament (OPL) also show thickening and oedematous change. There is mild sprain of the femoral insertion of the popliteus tendon (P)
It is located between posterior and interosseous borders. It is divided into smaller upper part and large lower part by an oblique line, which begins at the junction of upper and middle third of posterior border and runs in the direction of the posterior edge of radial notch. Area above the oblique line receives insertion of anconeus muscle Sternothyroid Origin Insertion innervation posterior surface of t he manubrium below the origin of the ster nohyoid m. oblique line of the t hyroid cartilage ansa cervicalis 28. Thyrohyoid Origin Insertion innervation oblique line of the th yroid cartilage lower border of the hyoid bone first cervical nerve 29
Assists flexion of knee joint, (popliteus 'unlocks' the extended knee joint to initate flexion of the leg). Helps reinforce posterior ligaments of the knee; Origin: Lateral surface of lateral condyle of femur. Oblique popliteal ligament of knee joint. Insertion: Upper part of posterior surface of tibira, superior to soleal line Ligaments:Knee joint:Collateral ligaments (medial & lateral) Medial capsuloligamentous complex has 3 layers that vary from anterior to mid to posterior; highly complex, with layers merging at different sites. Semimembranosus, semitendinosus, and gracilis are immediately deep to sartorius and superficial fascia. This means semitendinosus and. Spine T7, spinous processes and supraspinous ligaments of all lower thoracic, lumbar and sacral vertebrae, lumbar fascia, posterior third iliac crest, last four ribs (interdigitating with external oblique abdominis) and inferior angle of scapula: Floor of bicipital groove of humerus after spiraling around teres majo origin of internal oblique msucle. The Correct Answer is. thoracocolumbar fasciaaneterior 2/3 of iliac crestlateral 1/2 of inguinal ligament The posterior capsule and the oblique popliteal ligament (OPL) also show thickening and oedematous change. There is mild sprain of the femoral insertion of the popliteus tendon (P). The popliteofibular ligament is severely swollen and oedematous suggestive of high grade partial tear (curved black arrow)
superior medial surface of tibia, firmly attached to medial mensiscus. Term. ligaments: thickenings in floor of popliteal fossa (2) Definition. oblique and arcute popliteal ligaments. Term. popliteal bursa lies deep to the tendons what mm (3) Definition. quads, popliteus, medial head of gastrocnemius Obliquus capitis inferior( inferior oblique) Rectus capitis posterior major: The rectus capitis posterior major is located laterally to the rectus capitis posterior minor. It comprises the posterosuperior boarder of the suboccipital triangle. Origin: Spine of the axis Insertion: Lateral part of the area below the inferior nuchal lin MOB TCD Insertion Internal Oblique • Into coastal margin, upper three as fleshy fibres • Next three as aponeurotic • Inserted into linea alba • Between zyphoid and half way between umbilicus and pubic symphysis aponeurosis splits • Anterior layer fuses with external oblique • Posterior layer fuses with transversus 17 There is also insertion into the posterior joint capsule and arcuate ligament through the oblique popliteal ligament. On MRI sequences at the level of the ischial tuberosity, the hamstring tendons are identified as well-defined round areas of low signal intensity, where the conjoint tendon is posteromedial to the semimembranosus tendon [ 31 ] The superior oblique muscle arises from the periosteum of the sphenoid bone body, but its functional origin is the trochlea. The trochlea acts as a pulley for the superior oblique and is situated on the superomedial aspect of the frontal bone, rendering it prone to trauma from penetrating hook injuries in the medial canthus. [10
The oblique popliteal ligament (OPL) is the largest structure on the posterior aspect of the knee, and given its broad shape, it is probably vulnerable to, or easily involved in, posterior knee. - when the oblique popliteal ligament is pulled medially and forward, tightens the posterior capsule of the knee;br/> - this maneuver can be used to tighten the posterior capsule in the posteromedial corner of the knee in surgical repairbr/> Both the supraspinous ligament and the interspinous ligament are the first posterior ligaments to fail.
The anterior aspect of the posterior oblique ligament is plicated over the superficial MCL in a pants-over-vest fashion. (From Hughston, JC. The importance of the posterior oblique ligament in repairs of acute tears of the medial ligaments in knees with and without an associated rupture of the ACL. Results of long-term follow-up The purpose of this study was to improve the accuracy of the diagnosis of posteromedial knee joint injuries by describing the magnetic resonance imaging (MRI) features of posterior oblique ligament (POL) injuries. Fifty-five patients who presented with POL injuries observed on MRI from January 2016 to December 2017 were included -Posterior ligaments relaxed Lateral Flexion One side compressed nucleus moves in opposite direction Ipsilateral transverse processes and Origin Insertion Action Longitudinal Oblique Superior Oblique Inferior Bodies of C2-T3 Anterior Arch C1 Bodies of T1-T3 Bodies of C4-C7 Transverse Processes of C3-C6 Transvers tendon and synovial sheath, form the posterior oblique ligament, a major stabilizer of the postero-medial knee. The MCL bursa is located along the The PCL has a broad origin along the mid aspect ately proximal to its insertion on Gerdy's tubercle
reconstruction of oblique retinacular ligament used to treat swan neck deformity. if ORL is tight, from posterior tubercle of metacarpal head (dorsal to mid axis) to proximal phalanx base. insertion: extensor mechanism (curves around radial and ulnar side of MP joint) Triangular ligament anterior oblique ligament, maximum valgus instability occurs at 70° (10). Instability begins at approximately 30° or more of elbow flexion as the unique bony configura tion becomes less of a factor and (the elbow unlocks). The posterior oblique segment bundle of the UCL orig inates posterior and inferior to the medial epicondyle an
The posterior cruciate ligament (PCL) is a ligament within the knee.Ligaments are tough bands of tissue that connect bones. The PCL -- similar to the anterior cruciate ligament (ACL) -- connects. The internal oblique muscle is a diagonal muscle that is found at each side of the body, just lateral to the abdomen. This muscle has several different points of origin, which include: Iliac crest. The normal femoral origin of the posterior cruciate ligament is shown on this T1-weighted coronal image. Only a portion of the ligament is seen because of the normal oblique course of the ligament. The posterior cruciate ligament (black arrow) is of lower signal intensity than the anterior cruciate ligament (open arrow) The posterior oblique ligament assists the semimembranosus to dynamically stabilize the medial knee (21). Previous anatomical studies had described the s-MCL as having oblique posterior portions (23-25). It is now believed that these studies were, in fact, identifying the posterior oblique ligament and not variations of the s-MCL (18
Origin - Iliac crest. Inguinal ligament. Thoracolumbar fascia. Insertion - Lower 3-4 ribs. Linea alba. Actions - Contraction of one side alone laterally bends the trunk to that side and rotates the trunk to the other side. Compresses the abdomen and supports the abdominal viscera. Innervation - Ventral rami of thoracic nerves. . If needed, the reconstruction can be augmented with a soft-tissue graft at the anatomic origin and insertion of the medial collateral.
A description of the anterior oblique band of the fibular collateral ligament was provided—a firm band of tissue arising from the fibular collateral ligament in an oblique fashion, inserting at the lateral midportion of the tibia and blending with the posterior fibers of the iliotibial tract Internal oblique muscle View Related Images. Description: Origin: Lateral half of inguinal ligament, anterior portion of iliac crest, and thoracolumbar fascia Insertion: Costal cartilages of lowest four ribs and linea alba Actions: Rotates vertebral column and compresses abdomen Nerve supply
Superior Oblique: (3 in the figure) The superior oblique is the longest and thinnest eye muscle. Origin - arises above and medial to the optic foramen by a narrow tendon which partially overlaps the origin of the levator. Insertion - inserted to trochlea at orbital rim, on the medial wall of the antero-superior-medial orbit on the frontal. The oblique inferior retinaculum comprises two bands, a superomedial and an inframedial which unite to form a single lateral attachment. The tibialis anterior tendon passes deep to the oblique inferomedial ligament just prior to its insertion into the medial cuneiform
the inguinal ligament is a specialization of the inferior border of the external abdominal oblique aponeurosis; it is the site of origin for a part of the internal abdominal oblique muscle and for a part of the transversus abdominis muscle; also known as: Poupart's ligament: lacunar ligament ± 0.3 mm at the proximal origin, to 6.2 ± 0.7 mm at the midpoint of the MPFL origin and 7.1 ± 0.9 mm at the distal origin. Thus MPFL took origin from the anterior 18-44% of anteroposterior patellar depth, extending over 26% of the depth of the medial border of the patella (Fig. 2). The course and insertion of the deep MPFL ligament the inguinal ligament is a specialization of the external abdominal oblique aponeurosis; the external spermatic fascia is the external abdominal oblique muscle's contribution to the coverings of the testis and spermatic cord: iliacus: iliac fossa and iliac crest; ala of sacrum: lesser trochanter of the femu Avulsion fractures of the posterior cruciate ligament (PCL) are uncommon. A few mechanisms of PCL injuries have been proposed on the basis of the site of damage of the PCL .The most common mechanism of avulsion fractures of the PCL at the tibial insertion is a dashboard injury, in which the knee is in a flexed position, and a posteriorly directed force is applied to the pretibial area 
Muscle Tibialis Posterior (Tendon) •Origin - posterior surface of the interosseous membrane; from the lateral portion of the posterior surface of the tibia, and from the upper two-thirds of the medial surface of the fibula •Insertion -inferior aspect of navicular tuberosity, strong fibrous slips to all tarsal bones except th Posterior View SERRATUS POSTERIOR INFERIOR ORIGIN: Spinous processes of 1 Ith and 12th thoracic and 1st, 2nd and 3rd lumbar vertebrae, and the thoracolumbar fascia. INSERTION: Inferior borders of lower 4 ribs just beyond their angles. ACTION: Counteracts the pull of the diaphragm by drawing the ribs posterior and inferior, aids in respiration External oblique muscle View Related Images. Description: Origin: External surfaces and inferior borders of lower 8 ribs Insertion: Linea alba Actions: Rotates and flexes the vertebral column, compresses abdominal cavity Nerve supply: Lower intercostal nerves and subcostal nerve Blood supply: Branches of the lumbar and epigastric arterie
Background. Avulsion fractures of the posterior cruciate ligament (PCL) are uncommon. A few mechanisms of PCL injuries have been proposed on the basis of the site of damage of the PCL .The most common mechanism of avulsion fractures of the PCL at the tibial insertion is a dashboard injury, in which the knee is in a flexed position, and a posteriorly directed force is applied to the pretibial. ORIGIN Spine T7, spinous processes and supraspinous ligaments of all lower thoracic, lumbar and sacral vertebrae, lumbar fascia, posterior third iliac crest, last four ribs (interdigitating with external oblique abdominis) and inferior angle of scapula: INSERTION Floor of bicipital groove of humerus after spiraling around teres major: ACTIO cruciate ligament (ACL), collateral ligaments, and both meniscuses were intact. The appearance of the posterior cruciate ligament (PCL) was consistent with that of a PCL avulsion fracture at the tibial insertion, and the * Correspondence: firstname.lastname@example.org 1Department of Orthopaedic Surgery Gifu University, Graduate School o
Muscle Location Origin Insertion Action A PECTORALIS MAJOR upper chest clavicle, anterior sternum and costal cartilages of ribs 1-6; aponeurosis of external oblique muscle lateral humerus (greater tubercle) adducts and flexes arm; medially rotates arm B PECTORALIS MINOR deep to muscle A above anterior ribs (near costal cartilages of ribs 3-5 Origin and insertion: Courses between the transverse and spinous process (skipping 2-4 vertebrae) of all cervical vertebrae (C2 to the sacrum) Function: Bilateral contraction: extends the spine. Unilateral contraction: flexes to the same side and rotates to opposite side. Innervation: Dorsal rami of the spinal nerves Definition. ORIGIN. Oblique head: base of 2, 3, 4 metatarsals. Transverse head: plantar metatarsal ligaments and deep transverse ligament. INSERTION. Lateral side of base of proximal phalanx of big toe and lateral sesamoid. ACTION. Adducts and flexes metatarsophalangeal joint of big toe. Supports transverse arch