Name the muscles labeled A and B.

What is the action of the gluteus maximus?

What is the action of the frontalis?

Name the muscles labeled B[B], C[C], and D[D].

Name the muscles labeled A, B, and D.

Identify the muscles labeled A, B, and C.

Name the muscles labeled A, B, C, and D.

Name the muscles labeled A, C, and D.

Name the muscle labeled A[A] and B[B].

Name the muscles labeled C and D.