Musculus complexus minor is a Latin term used in anatomy to refer to a specific muscle in the human body. This muscle, also known by its synonyms, has several alternative names commonly used in medical literature. Some of the interchangeable terms for musculus complexus minor are suboccipitalis, rectus capitis posterior minor, and small suboccipital muscle. These synonyms are used to describe the same muscle, located deep in the back of the head and neck region. Having different terms to refer to the same muscle helps healthcare professionals in accurate communication, research, and understanding of anatomical structures. Regardless of the name used, it plays a crucial role in supporting head movement and maintaining posture.