Organization of the ll, front and medial sides of thigh

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  • 1.Objectives Organization of the lower limb Bony features Front of the thigh Medial side of the thigh Femoral triangle Adductor canal Dr. Dalia Saleh (Anatomy Dept)

2. Overview 3. Organization of the Lower Limb It is connected to the axial skeletonby a sacroiliac joint and its ligaments.ligaments. It is divided into: The gluteal region The thigh The leg The footDr. Dalia Saleh (Anatomy Dept) 4. Organization of the Lower Limb Important landmarks in the lower limb: The femoral triangle The popliteal fossa The posteromedial aspect of the anklejointDr. Dalia Saleh (Anatomy Dept) 5. Function Support body weight: The center of gravity is: Anterior to the edge of the S2S2vertebra in the pelvis Slightly posterior to the hip joints Anterior to the knee joint Anterior to the ankle joint The ligaments are tight and jointsare well supportedDr. Dalia Saleh (Anatomy Dept) 6. Function Locomotion: Flexion and extension at hip joint Abduction and adduction at hip joint Internal and external rotation of the hip joint Flexion and extension at the knee joint Plantar flexion and dorsiflexion at the ankle joint Inversion and eversion at the subtalar jointDr. Dalia Saleh (Anatomy Dept) 7. Thigh 8. Compartments of the ThighFemurSkin, superficial fascia and deep fasciaMedial intermuscular septumLateral intermuscular septumPosterior intermuscular septumAnterior compartmentMedial compartmentPosterior compartmentDr. Dalia Saleh (Anatomy Dept) 9. Boney Features 10. Hip Bone Acetabulum Anterior superior iliac spine Anterior inferior iliac spine Obturator foramen Body of pubic bone Pubic crest Pubic tubercle Superior pubic ramus(pectineal surface) Inferior pubic ramusDr. Dalia Saleh (Anatomy Dept) 11. Femure Intertrochanteric line Anterior surface of body offemure Greater trochanter Lesser trochanter Intertrochanteric crest Pectineal line Linea aspera Medial surachondylar line Adductor tubercle Dr. Dalia Saleh (Anatomy Dept) 12. Tibia Tibial tuberosity Anterior border (shin of tibia) Medial surface of tibiaDr. Dalia Saleh (Anatomy Dept) 13. Anterior Compartment 14. Anterior Compartment Muscles: Sartorius Iliopsoas Pectineus Quadriceps Region: Femoral triangle Contents: Femoral nerve Femoral artery Femoral vein Femoral LN Dr. Dalia Saleh (Anatomy Dept) 15. Sartorius Strap like muscle. Divides front of thigh into uppermedial and lower lateral parts Origin: ASIS. Insertion: Upper part of medial surface of tibia. Nerve supply: Femoral nerve. Action: Flexes both hip and knee joints.Dr. Dalia Saleh (Anatomy Dept) 16. Iliopsoas Origin: Iliacus iliac fossa of hip bone Psoas major Transverse processes,bodies, and intervertebral discs (T12 (T12L5) Insertion: Into lesser trochanter of femur. Nerve supply: Femoral nerve. Action: Flexes thigh on trunk. Flexes trunk on thigh (sitting, leaning). Dr. Dalia Saleh (Anatomy Dept) 17. Pectineus Origin: Superior ramus of pubis Insertion: Upper end of linea aspera of shaft offemur Nerve supply: Femoral nerve. Action: Flexes and adducts thigh at hip jointDr. Dalia Saleh (Anatomy Dept) 18. Quadriceps Rectus Femoris Origin: Straight head AIIS Reflected head ilium just superior to theacetabulum Insertion: Quadriceps femoris tendon patella ligamentum patellae tibial tuberosity Nerve supply: Femoral nerve Action: Flexes the thigh at the hip joint Extends the leg at the knee jointDr. Dalia Saleh (Anatomy Dept) 19. Quadriceps Vasti Origin: Vastus medialis Upper end and shaft of femur medialis Vastus lateralis Upper end and shaft offemur Vastus intermedius anterior and lateralsurfaces of femur Insertion: Quadriceps femoris tendon patella ligamentum patellae tibial tuberosity Nerve supply: Femoral nerve Action: Extends the leg at the knee jointDr. Dalia Saleh (Anatomy Dept) 20. Medial Compartment 21. Medial Compartment Muscles: Pectineus Adductor longus Gracilis Adductor brevis Adductor magnus Obturator externus Region: Adductor canal Contents: Femoral artery and vein Saphenous nerve Nerve to vastus medialisDr. Dalia Saleh (Anatomy Dept) 22. Gracilis Origin: Inferior ramus of pubis, ramus of ischium Insertion: Upper part of medial surface of shaft of tibia Nerve supply: Obturator nerve Action: Adducts thigh at hip joint Flexes leg at knee jointDr. Dalia Saleh (Anatomy Dept) 23. Adductor Longus Origin: Body of pubis, medial to pubic tubercle Insertion: Posterior surface of shaft of femur Nerve supply: Obturator nerve Action: Adducts thigh at hip joint Lateral rotation of the thighDr. Dalia Saleh (Anatomy Dept) 24. Adductor Brevis Origin: Inferior ramus of pubis Insertion: Posterior surface of shaft of femur Nerve supply: Obturator nerve Action: Adducts thigh at hip joint Lateral rotation of the thighDr. Dalia Saleh (Anatomy Dept) 25. Adductor Magnus Origin: Inferior ramus of pubis, ramus of ischium, ischialischium,tuberosity Insertion: Pubic part Posterior surface of shaft of femur Ischial part Adductor tubercle of the femur Nerve supply: Pubic part Obturator nerve Ischial part Sciatic nerve Action: Pubic part Adducts and laterally rotate thigh Ischial part Extends hip and flexes kneeDr. Dalia Saleh (Anatomy Dept) 26. Obturator Externus Origin: Outer surface of obturator membraneand pubic and ischial rami Insertion: Medial surface of greater trochanter Nerve supply: Obturator nerve Action: Laterally rotates thighDr. Dalia Saleh (Anatomy Dept) 27. Femoral Triangle Adductor Canal 28. Femoral Triangle Site: Triangular depressed area At the upper part of the medialaspect of the thigh Boundaries:Superiorly: The inguinal ligamentLaterally: The sartorius muscleMedially: The adductor longus muscle Floor: Iliopsoas Pectineus Adductor longusDr. Dalia Saleh (Anatomy Dept) 29. Femoral Triangle Contents: Femoral nerve and its branches Femoral sheath containing: Femoral artery and its branches Femoral vein and its tributaries Femoral canal Femoral LNDr. Dalia Saleh (Anatomy Dept) 30. Adductor Canal Site:Lies on the medial aspect of the middle third of the thigh beneath the sartorius muscle Boundaries:Superiorly: the apex of the femoral triangleInferiorly: the opening in the adductor magnusPosteriorly: Posteriorly: The adductor longus and adductor magnusLaterally: Vastus medialisRoof: Fascia and sartoriusDr. Dalia Saleh (Anatomy Dept) 31. Adductor Canal Contents:The terminal part of the femoral arteryThe terminal part of the femoral veinThe deep lymph vesselsThe saphenous nerveThe nerve to the vastus medialisThe terminal part of the obturator nerveDr. Dalia Saleh (Anatomy Dept) 32. For more details please go back to any text bookDr Dalia SalehDr. Dalia Saleh (Anatomy Dept)