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The connective tissue sheath covering each fasciculus is known as perimysium, and the innermost sheath surrounding individual muscle fiber is known as endomysium. The outermost connective tissue sheath surrounding the entire muscle is known as epimysium. The individual bundles of muscle fibers in a skeletal muscle are known as fasciculi. Each skeletal muscle consists of thousands of muscle fibers wrapped together by connective tissue sheaths. It is situated both in the posterior as well as in medial fascial compartments of the thigh.Skeletal muscle is one of the three significant muscle tissues in the human body. The large triangular muscle of the lower limb is known as the adductor Magnus muscle, with its apex it is situated on the hip bone, and with the muscle’s base on the linea aspera of the femur. Origin: Anterior body of the pubis, inferior pubic ramus
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Insertion: Linea Aspera of the femur (medial lip) Together with adductor longus, adductor Magnus, gracilis, as well as pectineus muscles, it comprises a group of muscles known as the adductors of the thigh.Īction: Hip joint: thigh flexion, thigh adduction The muscle that runs from the pubis to the medial aspect of the femur is the adductor brevis. The Adductor brevis is a flat, triangular muscle and it is found in the inner thigh. Gracilis muscle is generally thin and flattened, broad above, narrow, and a little tapering below. The most superficial muscle on the medial side of the thigh is the Gracillis muscle. The gracilis muscle is the Latin term for slender. Nerve: Femoral nerve, sometimes obturator nerve It can be classified in the medial compartment of the thigh (when the function is emphasized) or the anterior compartment of the thigh (when the nerve is emphasized) The muscle does adduct as well as internally rotates the thigh but the primary function of the muscle is hip flexion. The most anterior adductor of the hip is the pectineus muscle. This muscle is situated at the medial (inner) aspect and the upper part of the thigh. The pectineus muscle is a flat and quadrangular muscle. The muscle’s contribution to the internal or the medial rotation of the thigh is still not known. The blood supply of this muscle mainly from the deep femoral artery as well as contributions from the medial circumflex femoral and femoral arteries.Ĭoming to the main function of the adductor longus, the main function is to adduct the thigh at the hip joint.Īdditionally, the adductor longus contributes to the flexion of the extended thigh, as well as the adductor longus contributes to the extension of the flexed thigh. Upon originating from the anterior surface of the body of the pubis, the adductor longus muscle fibers course downwards and this muscle is laterally inserted onto the middle third of the linea Aspera and this muscle is innervated by the anterior division of the obturator nerve (L2-L4). What is Adductor Longus?Īdductor longus is triangular in shape, the most anteriorly placed muscle of the adductor group. The majority of hip adductors are innervated by the obturator nerve (L2-L4) and blood is supplied mainly via the branches of the femoral and also via the obturator arteries. More specifically, these hip adductors generally extend from the anteroinferior external surface of the bony pelvis to the shaft of the femur as well as extend to the proximal tibia. The primary action of gracilis is adduction of the thigh and to assist in flexion of the knee as well as medial rotation of that flexed knee, similar to what we’ll see when we look at sartorius.ĭue to the position of Hip adductors, the hip adductors are known to shape the surface anatomy of the medial thigh. The adductor longus assists in flexion and medial rotation of the femur at the hip joint. The primary function of the adductor brevis is the adduction of the thigh at the hip joint and the adductor brevis is known to assist in flexion and in addition to that is the rotation of the femur at the hip joint in medical.Īlso, the function of the adductor longus is adduction of the thigh at the hip joint. The pectineus assists in both adduction as well as in flexion of the femur at the hip joint. The adductor group includes the following muscles: There is an exception that the largest of them is the adductor Magnus muscle. Most of them are surprisingly thin muscles. As they originate in different places at the front of the pelvis, the adductor muscles are all present somewhere along the medial side of the thigh, The hip adductors are known as a group of five muscles that are located in the medial compartment of the thigh.Īs the name suggests the adductor muscles are a group of muscles that primarily function to adduct the femur at the hip joint.