Accessory gluteal line

The ilium presents a concave dorsolateral surface called the gluteal surface. It is crossed by gluteal lines (three in carnivores and one for other domestic animals) for the origin of the gluteal muscles:

The main gluteal lines are:

• Ventral gluteal line: between gluteus medius and profundus in carnivores, between gluteus medius and accessorius in cows and horses
• Caudal gluteal line: ventral border of the gluteus profundus
• Dorsal gluteal line
• Accessory gluteal line: between the gluteus medius and accessorius