Hip

Neck of Femur

Neck of Femur The structure indicated is the neck of the femur. The proximal femur consists of the following key features: Head of femur: articulates with acetabulum. Facet for attachment of ligament of head. Neck of femur: connects head to shaft Greater trochanter: site of attachment for several muscles, including gluteus minimus and medius Lesser trochanter: iliacus and psoas insert Trochanteric fossa Intertrochanteric line Intertrochanteric crest Quadrate tubercle Fractures of the neck of femur are very common injuries which mainly occur in elderly females with osteoporotic bones. The classical clinical finding is that of an externally rotated shortened leg. A …

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Neck of femur

Obturator Externus

Obturator Externus The muscle indicated is the obturator externus muscle. The obturator externus is one of six muscles in the medial compartment of the thigh. The thigh consists of three muscular compartments: Anterior Medial Posterior The medial compartments consists of the following muscles: Gracilis Pectineus Adductor longus Adductor brevis Adductor magnus Obturator externus All the muscles of the medial compartment are innervated by the obturator nerve except for the pectineus (femoral nerve) and the hamstring part of the adductor magnus (tibial division of sciatic). The muscles of the medial compartment generally serve to adduct the thigh at the hip joint. …

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Obturator externus

Adductor Brevis

Adductor Brevis The structure indicated is the adductor brevis muscle. The muscle indicated is the adductor brevis muscle of the thigh. The adductor brevis is one of six muscles in the medial compartment of the thigh. The thigh consists of three muscular compartments: Anterior Medial Posterior The medial compartments consists of the following muscles: Gracilis Pectineus Adductor longus Adductor brevis Adductor magnus Obturator externus All the muscles of the medial compartment are innervated by the obturator nerve except for the pectineus (femoral nerve) and the hamstring part of the adductor magnus (tibial division of sciatic). The muscles of the medial …

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Adductor Brevis

Acetabulum

Acetabulum The structure indicated is the acetabulum of the pelvis. The acetabulum is formed from the point joining the three bones of the pelvis (ilium, ischium and pubis), and is the site of articulation with the head of the femur. The femoroacetabular articulation is known as the hip joint. The acetabulum consists of two parts: Articular part Non-articular part The non-articular part consists of the acetabular fossa and the acetabular notch inferiorly. The ligamentum teres attaches at one end to the acetabular notch, and at the other end to the fovea capitis of the femur. The articular part forms a …

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Acetabulum

Iliopsoas Muscle

Iliopsoas Muscle The structure indicated is the iliopsoas muscle. The iliopsoas muscle collectively refers to the distal ends of the psoas major and iliacus muscles which exit the pelvis to enter the anterior compartment of the thigh and insert onto the lesser trochanter of the femur. The iliopsoas muscle is the strongest hip flexor. Origin: Iliac fossa and vertebral bodies of T12 to L5 Insertion: Lesser trochanter of femur Innervation: anterior rami of lumbar plexus (L2-L4) Action: Hip flexion, lateral rotation of femur Learn more about the muscles of the anterior compartment of the thigh in this tutorial.

iliopsoas