Ligaments Flashcards
Coracoclavicular Trapezoid Ligament
stabilizes acromioclavicular joint
Limits medial displacement, protraction, and elevation
Coracoclavicular Conoid Ligament
stabilizes acromioclavicular joint
Limits medial displacement, protraction, and elevation
Acromioclavicular
stabilizes joint, from superior lateral end of clavicle to acromion
Coracoacromial
prevents superior displacement of humeral head
Coracohumeral
reinforces superoanterior aspects of glenohumeral joint capsule
Costoclavicular
stabilizes sternoclavicular joint limiting elevation of the clavicle
Attaches from superior aspect of first rib to undersurface of medial clavicle end
Superior Transverse Scapular
closes off suprascapular notch like a bridge
Glenoid Capsule
circumference of glenoid cavity to anatomical neck of the humerus
Glenohumeral
superior, middle, inferior
All 3 stabilize glenohumeral joint
Ulnar collateral
resists excessive cubital varus
Attaches from medial epicondyle to medial margin of coronoid process &. olecranon process
Radial collateral
resists excessive cubital valgus
Attaches from lateral epicondyle to the anular ligament
Anular
stabilizes proximal radioulnar joint
Attaches from the anterior margin of the radial notch to the posterior margin of the radial notch surrounding the head of the radius
Interosseous membrane
attaches from the interosseous border of the radius to the ulna
Transverse carpal
prevents bowstringing of the tendons of the flexor pollicis longus, flexordigitorum superficialis, & flexor digitorum profundus muscles
Attaches from the pisiform and hook of hamate to the scaphoid and trapezium
Collateral ligaments of metacarpophalangeal joints
stabilizes joint
Attaches from the head of the metacarpals to the base of the adjacent proximal phalanx
Sacrotuberous
From the posterior iliac spine & lateral margin of the sacrum to the ischial tuberosity
Sacrospinous
From the ischial spine to the lateral margin of the sacrum
Fibrous joint capsule of pelvic girdle
From the margin of the acetabulum to the neck, intertrochanteric line & crest of the femur
Iliofemoral
From the AIIS to the intertrochanteric line of the femur
Pubofemoral
From iliopubic eminence and superior pubic ramus to the fibrous capsule
Ischiofemoral
From the ischium posterior to the acetabulum to the greater trochanter & iliofemoral ligament
Ligament of the head of the femur (ligamentum teres)
From the fovea of the femoral head to the acetabular notch
Transverse acetabular
Interconnects the margins of the acetabular notch
Fibrous capsule of the knee
From the margins of the femoral condyles to the margins of the tibial condyles
Tibial (medial) collateral ligament (MCL)
From the medial epicondyle of the femur to the medial condyle & shaft of the tibia
- stabilizes the medial aspect of the knee joint. Prevents abduction of the tibia
Fibular (lateral) collateral ligament (LCL)
From the lateral epicondyle of the femur to the head of the fibula
- stabilizes the lateral aspect of the joint. Prevents adduction of the tibia.
Anterior cruciate ligament (ACL)
From the medial part of the anterior intercondylar area of the tibia to the posterior part of the medial surface of the lateral condyle of the femur
- prevents posterior displacement of the femur on the tibia and hyperextension of the knee
Posterior cruciate ligament (PCL)
From the posterior intercondylar area of the tibia to the lateral surface of the medial condyle of the femur
- Prevents anterior displacement of the femur on the tibia
Menisci (medial & lateral)
Medial menisci - (c-shaped & larger) anterior & posterior regions of the intercondylar area of the tibia and fibrous capsule at the tibial collateral ligament
Lateral menisci - (o-shaped & smaller) anterior & posterior regions of the intercondylar area of tibia
Patellar ligament (tendon)
From the apex of the patella to the tibial tuberosity
- resists knee flexion
Crural interosseous membrane
From the lateral border of the tibia to the medial border of the fibula
Talocrural fibrous capsule
From the borders of the articular surfaces of the tibia & malleoli to the margins of the trochlear surface of the talus
Medial collateral Ankle (Deltoid ligament)
From the medial malleolus to the talus, navicular & sustentaculum tali of the calcaneus.
- stabilizes the ankle joint and resists eversion
Lateral Ankle Ligaments
Stabilize the ankle joint & resist inversion
- Anterior talofibular
- Posterior talofibular
- Calcaneofibular
- Lateral taocalcaneal
Long Plantar Ligament at Foot
From the plantar surface of the calcaneus & cuboid to the plantar surface of the bases of the metatarsals
Plantar calcaneocuboid (Short Plantar Ligament)
From the calcaneus to the plantar surface of the cuboid
Plantar calcaneonavicular (Spring Ligament)
From the anterior margin of the sustentaculum tali to the plantar surface of the navicular
- supports the medial longitudinal arch of the foot. If injured, arch collapses.
