She slipped and hit her coccyx.

There is a silky in my garden.

He is studying the penile bone of ancient animals.

He explained in detail about the structure of the sphenoid bone.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He spoke of his big dreams, saying, 'How can a sparrow understand the ambitions of a swan?'

He goes to the gym every day to train his brachioradialis muscle.

He is doing a special exercise to strengthen his sternohyoid muscle.

The mylohyoid muscle plays an important role in opening the mouth.

She started strength training for the iliococcygeus muscle.