Which phalanx has 2 bones?

The hallux, commonly known as the big toe, is unique among the toes in that it consists of two phalanges: the proximal and distal phalanx. This anatomical structure is distinct as all the other toes (the second, third, and fourth toes) each have three phalanges—proximal, middle, and distal. This design allows for a greater range of motion and flexibility in the smaller toes, while the two-bone structure of the hallux provides stability and strength necessary for activities such as walking and balancing.

Understanding the makeup of the hallux is important in pedorthics, as it affects how footwear design and modifications can accommodate the natural biomechanics of the foot. The distinction in phalanx count is essential in areas such as custom orthotics and rehabilitation programs, where considerations for toe mobility and function are integral to patient care.