He secured his bicycle with a chain.

He trains his pectoralis major muscle at the gym every day.

He exercises his pectoralis minor muscle at the gym every day.

The rotator thoracis is one of the muscles that helps in the rotation of the body.

He is doing a special exercise to train his longissimus thoracis muscle.

She has a large breast.

He put his hand on his chest and swore.

She consumes dairy products every day.

She is famous for her beautiful bust.

In the old days, people used to consider milk as an important source of nutrition.