What is the function of the pectoralis for the frog?

In frogs, the pectoralis muscle primarily functions to assist in the movement of the forelimbs, particularly during jumping and swimming. It helps in the adduction of the forelimbs, bringing them closer to the body, which is crucial for stabilizing the frog during locomotion. Additionally, the pectoralis plays a role in respiration by aiding in the movement of the forelimbs during the expansion and contraction of the body cavity.