ANAT 1507 Articulation of Lower Limbs

ANAT 1507 Articulation of Lower Limbs - ARTICULATIONS OF...

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ARTICULATIONS OF LOWER LIMB • Hip Joint • Knee Joint • Tibiofibular Joint • Ankle Joint • Intertarsal Joint • Tarsometatarsal Joint • Intermetatarsal Joint • Metatarsophalangel Joint • Interphalangeal Joint Monday, July 12, 2010
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Pelvic Articulations • Lumbosacral Joint – Intervertebral – Zygapophysial – Iliolumbar ligaments Monday, July 12, 2010
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Sacrococcygeal Joint • IVD • Sacrococcygeal ligaments • anterior and posterior, they are homologous to ALL and PLL Monday, July 12, 2010
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Pubic Symphysis • Interpubic disc • Superior pubic ligament • Inferior Pubic Ligament (arcuate ligament) Monday, July 12, 2010
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Sacroiliac Joints Weight bearing Interosseous ligaments Sacroiliac ligaments Sacrotuberous ligament Sacrospinous ligament Monday, July 12, 2010
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Intrinsic Ligaments of the Hip Bone • Inguinal Ligament • Pectineal Ligament • Lacunar Ligament Monday, July 12, 2010
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Hip (Coxal)Joint ball and socket or spheroid joint Most stable when extended A. Articular Capsule - consists of four different parts: goes from the labrum and the body of the ilium to the greater trochanter, intertrochanteric line and crest, lesser trochanter and neck 1) iliofemoral ligament (anterior)- aka the Y ligament of Bigelow spans from the AIIS around the femur to the greater trochanter and intertrochanteric line - strongly limits hyperextension of the hip largest and most important, very strong 2) pubofemoral ligament (anteroinferior)- from the body and superior ramus of pubis to femur head, blends with lower limb of the iliofemoral ligament - resists abduction of the hip 3) ischiofemoral ligament (posterior) - from the body of the ishium inferior and posterior to acetabulum to blend with the circular fibers of capsule and iliofemoral ligament 4) zona orbicularis - synovial lining, of the capsule - circular fibers around the neck of the femur, largely hidden by ligaments Monday, July 12, 2010
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B. Ligamentum Capitis Femoris - aka -Ligament of Femur Head - from fovea to either side of acetabular notch and attaches to the transverse acetabular ligament - becomes tense when thigh is semiflexed Less important in adults, but may check posterosuperior displacement of the head of femur in fetuses If it gets stretched it will contribute to laxity of the joint C. Acetabular Labrum - a fibrocartilage margin of the acetabulum that increases the depth of the socket, bridges notch as the transverse acetabular ligament D. Transverse Acetabular Ligament – A continuation of the labrum but there is no cartilage cells among, its fibers Monday, July 12, 2010
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KNEE - largest and most complex joint in the body, It allows gliding, hinge and rotation A. Articular capsule - strengthened by muscles and ligaments the cross the joint, but there is a defect (hole) posteriorly
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ANAT 1507 Articulation of Lower Limbs - ARTICULATIONS OF...

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