What is the insertion point for the fibularis tertius?

The fibularis tertius, also known as peroneus tertius, is a muscle of the lower leg that plays a role in the eversion of the foot and dorsiflexion of the ankle. Its insertion point at the base of the fifth metatarsal is crucial for its function. This attachment allows the muscle to effectively assist in lifting the foot's outer edge and controlling lateral movement, which is important for activities such as walking, running, and maintaining balance during various physical activities.

Understanding the specific attachment of the fibularis tertius to the base of the fifth metatarsal helps reinforce how muscle functions relate to skeletal structures. This knowledge aids in comprehending common injuries or dysfunctions related to the ankle and foot, particularly in athletes or individuals who participate in activities that stress these areas. The other metatarsals are not relevant here, as they do not serve as the proper sites for the insertion of the fibularis tertius, thus emphasizing the importance of knowing anatomical details in sports massage and rehabilitation.