The latissimus dorsi (/ ləˈtɪsɪməs ˈdɔːrsaɪ /) is a large, flat muscle on the back that stretches to the sides, behind the arm, and is partly covered by the trapezius on the back near the midline.

Feb 4, 2025 · The latissimus dorsi muscle, commonly known colloquially as the ‘lats,’ is one of the largest muscles of the back, stretching across the lower posterior thorax. Its primary function is …

Sep 13, 2025 · Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans your middle and lower back and extends to the front of your humerus (upper arm bone).

Nov 3, 2023 · The latissimus dorsi muscle (AKA: 'the lats muscle' or 'the lats') is the widest muscle in the human body. It is relatively thin and covers almost all back muscles at the posterior …

May 23, 2025 · Latissimus dorsi, often known as the ‘lats,’ is the broadest muscle in the human body that covers almost the entire back, overlying most other back muscles.

It is a large, flat, triangular muscle covering the lower back. It arises from the lower half of the vertebral column and iliac crest (hipbone) and tapers to a rounded tendon inserted at …

Nov 3, 2025 · The latissimus dorsi or "lats" muscles are large, flat muscles located below your shoulder blade. They help keep your back stable while you move your shoulders.

Mar 5, 2023 · The latissimus dorsi is a broad, flat muscle occupying most of the lower posterior thorax (see Image. Surface Anatomy of the Thorax). The muscle's primary function is to move …

Oct 15, 2024 · Experts describe the latissimus dorsi muscles as accessory respiration muscles, meaning that they support major breathing muscles such as the diaphragm. They help when …

Mar 31, 2025 · Pain in the latissimus dorsi, or lats, can occur due to overuse. It may also result from improper technique in sports or other activities. Several exercises and stretches may help …