Final answer:
The latissimus dorsi muscle is commonly known as the 'lats' and is a large, flat muscle that extends from the lower back to the upper arm. Its primary function is to adduct and medially rotate the arm. However, it is not innervated by the thoracodorsal nerve.
Step-by-step explanation:
The latissimus dorsi muscle, commonly known as the 'lats', is a large, flat muscle that extends from the lower back to the upper arm. Its primary function is to adduct and medially rotate the arm. However, the latissimus dorsi muscle is innervated by the thoracodorsal nerve. Therefore, option D is not true regarding the latissimus dorsi muscle.