The linea aspera is a prominent longitudinal ridge or crest, on the middle third of the bone, presenting a medial and a lateral lip, and a narrow rough, intermediate line. It is an important insertion point for the adductors and the lateral and medial intermuscular septa that divides the thigh into three compartments .

Aug 2, 2021 · The linea aspera is a longitudinally-oriented ridge on the posterior aspect of the femur to which several muscles of the thigh attach. It is comprised of medial and lateral lips which diverge at both its superior and inferior ends.

Nov 13, 2020 · A cross section of the shaft in the middle is circular but flattened posteriorly at the proximal and distal aspects. On the posterior surface of the femoral shaft, there are roughened ridges of bone, called the linea aspera (Latin for rough line).

Calcification at the linea aspera is a differential for hip/thigh pain. Imaging should commence with plain radiographs, and also include the distal femur. Smaller calcific deposits can be obscured on anteroposterior projection, necessitating additional views.

Jan 10, 2025 · Attaches to the linea aspera on the posterior surface of the femur (proximal to the adductor longus attachment). Actions: Adduction of the thigh. Innervation: Obturator nerve (L2-L4).

Jan 28, 2025 · The Linea Aspera is a vertically oriented ridge on the posterior aspect of the femur that serves as a bony attachment for multiple muscles of the hip and thigh

Dec 17, 2022 · The thigh region is essential to the proper postural stability and locomotion of humans and is also a key conduit for neurovascular structures that pass from the abdomen to the lower limbs (see Image. Cross-Section of the Thigh).

• All (except gracilis) insert on linea aspera of posterior femur. • All (except pectineus muscle) are innervated by obturator nerve. • act primarily as adductors of the thigh

May 22, 2016 · In cross section , the bulky adductor magnus muscle has a roughly triangular profile, with a narrow linear medial attachment along the medial lip of the linea aspera.

The linea aspera of the femur (22) provides attachment for the vastus medialis (2), adductor longus (see Section 6), adductor magnus (11), adductor brevis (6), short head of biceps femoris (17), and vastus lateralis (20) muscles.