Anatomy of the thigh The thigh is the area between the pelvis and the knee. The single bone in the thigh (femur).
Surface anatomy of the thigh Surface features of the Thigh Sartorius muscle Quadriceps femoris muscle Adductor longus muscle Hamstring muscles Femoral triange
Anatomy of the thigh Thigh is divided to 3 groups of muscles called compartments. Anterior compartment Posterior compartment Medial compartment These three compartments are separated by fascia.
Compartments of the Thigh Fascial septa divide limb into compartaments anterior compartment medial compartment posterior compartment Anterior compartment Medial (adductor) compartment Posterior compartment Fascia Lata
Anatomy of the thigh The anterior compartment muscles of the thigh flex the femur at the hip and extend the leg at the knee. The posterior compartment muscles of the thigh extend the thigh and flex the leg. The medial compartment muscles all adduct the thigh.
Anatomy of the thigh The anterior compartment of the thigh is homologous to the posterior compartment of the arm. The posterior compartment of the thigh is homologous to the anterior compartment of the arm.
Anatomy of the thigh Thigh innervations: Anterior compartment from femoral nerve L2,3,4. Medial compartment from obturator nerve L2,3,4. Posterior compartment from sciatic nerveL4,5,S1,2,3 (sacral plexus).
Thigh innervations Anterior compartment- Extensors of the knee Femoral Nerve femur medial lateral Medial compartment- Adductors of the knee Obturator Nerve Posterior compartment- Flexors of the knee Sciatic Nerve
Anterior surface of thigh Femoral Triangle: Floor: Iliopsoas muscle. Pectineus muscle. Adductor longus muscle. Roof: Fascia Lata
Anterior surface of thigh Femoral Triangle: Contents (lateral to medial): Femoral Nerve Femoral Artery Femoral Vein Lymphatics
Anterior surface of thigh Adductor Canal: Borders: Lateral: Vastusmedialis muscle. Posterior: Adductor longus and magnus. Anteromedial: Sartorius muscle.
Anterior surface of thigh Adductor Canal: Contents: Saphenous nerve: Termination of femoral nerve. Nerve to vastusmedialis. Terminal part of obturator nerve. Terminal parts of femoral artery and vein. Deep lymph vessels.