In the medical class, I learned about the fissure of the heart.

His heart is very healthy.

He explained the structure of the arytenoid cartilage in the throat in detail.

The arytenoid muscle is part of the laryngeal muscles, regulating the opening and closing of the vocal cords.

I like to study new languages.

I will teach mathematics to new students tomorrow.

I attended a math class today.

He majors in medicine.

The clown is a part of the circus, performing various acts to entertain the children.

He injured his oblique arytenoid muscle in his throat.