He is doing special exercises to strengthen his depressor muscle.

Primitive communism is one of the initial forms of human social organization.

The system of provinces was a part of the ancient political system in Japan.

The depressor anguli oris is the muscle that lowers the corners of our mouth when we are sad.

She lowered her eyebrows using the depressor supercilii.

She used her depressor labii inferioris to lower the corners of her mouth.

He underwent surgery on the depressor septi nasi.