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The longissimus muscle is a long intrinsic muscle of the back. Along with spinalis and iliocostalis, these three muscles comprise the erector spinae group. The erector spinae is a large musculotendinous complex that runs along the entire length of the vertebral column and comprises the intermediate layer of the intrinsic, or deep, back muscles. Longissimus is the longest, thickest and most central erector spinae muscle. It is divided into three parts (capitis, cervicis, thoracis) based on their

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Muscle Storm | Back Muscles ❄️♻️🔥 . . Superficial Layer 1. Trapezius: This large muscle extends from the back of the skull to the middle of the back and helps in moving the shoulders and supporting the arms. Latissimus Dorsi: Located on the lower back, it aids in shoulder movement and helps with pulling actions. 2. Intermediate Layer Rhomboid Major and Minor: These muscles are located between the shoulder blades and help retract the scapula. Serratus Posterior Superior and Inferior: These assis