Ascending branch of medial circumflex femoral artery

Ascending Branch of the Medial Circumflex Femoral Artery

The ascending branch of the medial circumflex femoral artery is a crucial vascular structure in the human body, playing a significant role in the blood supply to the femur and surrounding muscular structures. This artery is a branch of the medial circumflex femoral artery, which itself is a major branch of the femoral artery, originating in the thigh.

Anatomy

The ascending branch of the medial circumflex femoral artery emerges from the medial circumflex femoral artery, which branches off from the deep artery of the thigh or directly from the femoral artery in some individuals. It ascends posteriorly, winding around the medial side of the femur to supply blood to the head and neck of the femur and the hip joint.

This artery is notable for its anastomoses with the lateral circumflex femoral artery, inferior gluteal artery, and the obturator artery. These anastomoses are essential for maintaining a collateral circulation to the hip joint, especially in cases where the primary blood supply is compromised.

Function

The primary function of the ascending branch of the medial circumflex femoral artery is to supply oxygenated blood to the head and neck of the femur, the hip joint, and the surrounding muscular structures. It plays a vital role in the vascularization of the upper thigh and hip area, contributing to the health and functionality of the hip joint and femur.

Clinical Significance

The ascending branch of the medial circumflex femoral artery is of particular interest in orthopedic and vascular surgery due to its proximity to the hip joint and the femur. It is at risk during surgical procedures involving the hip, such as total hip arthroplasty or fracture repair of the femur. Knowledge of its anatomy is crucial to avoid inadvertent injury, which can lead to avascular necrosis of the femoral head or other complications.

In addition, the artery's role in collateral circulation makes it a subject of interest in cases of atherosclerosis or other conditions that may compromise blood flow to the lower extremities. Understanding the vascular supply routes, including the ascending branch of the medial circumflex femoral artery, is essential for diagnosing and treating these conditions.

See Also

• Femoral artery
• Medial circumflex femoral artery
• Lateral circumflex femoral artery
• Inferior gluteal artery
• Obturator artery