Muslos

Muslos, the Spanish word for thighs, refer to the upper part of the leg between the hip and the knee. In anatomy, the thigh contains the femur, the longest bone in the body, and a group of muscles organized into anterior, posterior, and medial compartments. The major anterior muscles form the quadriceps, which extend the knee; the hamstrings at the back flex the knee and assist hip extension; the medial compartment includes the hip adductors that pull the leg inward, while lateral structures contribute to hip abduction.

Vascular and neural supply: The thigh receives blood from the femoral artery and vein, with branches such as the profunda femoris. Innervation is divided by compartments: the anterior compartment mainly by the femoral nerve, the posterior by the sciatic nerve, and the medial by the obturator nerve, with accessory nerves and branches contributing to regional control.

Functions: The thigh acts as a weight-bearing lever that enables locomotion, walking, running, jumping, and various movements of the hip and knee. Muscles attach via tendons to the pelvis, patella, and tibia, transmitting force and stabilizing joints during movement and posture maintenance.

Clinical considerations: Thigh injuries are common in sports and can include muscle strains, contusions, and, less frequently, more severe tears of the quadriceps or hamstrings. Evaluation depends on symptoms and examination, and management ranges from rest and rehabilitation to professional medical assessment for persistent pain, swelling, weakness, or suspected vascular or nerve involvement.