Metatarsals

The primary function of the metatarsals is to support the weight of the body while standing, walking, or running. These bones contribute significantly to the overall structure of the foot and play a crucial role in maintaining arch formation, which is vital for shock absorption and balance. During movement, the metatarsals act as levers, enabling the toes to push off the ground effectively, facilitating forward motion. This dynamic function allows the metatarsals to adapt to various surfaces and activities, playing a key role in both stability and agility.

Located in the foot, the metatarsals form the middle section and lie directly between the tarsal bones of the hindfoot and the phalanges of the toes. Each metatarsal emerges from the respective tarsal bone at the base and articulates with the proximal phalanx of each toe at the head. The first metatarsal, which is typically the thickest, is positioned underneath the big toe, while the fifth metatarsal is located at the outer edge of the foot, under the little toe. Their arrangement allows for both structural support and mobility, accommodating the complex movements involved in locomotion.

• The first metatarsal has a more robust structure compared to the others, enabling it to bear more weight during activities like walking and running.
• Fractures of the metatarsals are common in sports-related injuries, especially in activities that involve quick direction changes.
• The metatarsals play a significant role in maintaining the arches of the foot, which help distribute body weight evenly across the foot.