Final answer:
The latissimus dorsi is a broad, triangular muscle located on the inferior part of the back. It is involved in various movements of the arm and is important for activities like swimming and rowing.
Step-by-step explanation:
The latissimus dorsi is a broad, triangular muscle located on the inferior part of the back. It is one of the muscles that move the humerus bone of the arm and is involved in various actions such as adduction, extension, and medial rotation of the arm. The latissimus dorsi is commonly referred to as the 'lats' and is important for activities like swimming, rowing, and pulling movements.