Metatarsals support body weight during walking from "summary" of Bd Chaurasia's Human Anatomy, Volumes 3 & 4 by B. D. Chaurasia
Metatarsals are the long bones in the forefoot region of the foot, extending from the tarsal bones to the phalanges. They play a crucial role in supporting the body weight during walking. When a person is standing or walking, the body weight is transferred from the tibia and fibula to the talus bone in the ankle joint. From the talus, the weight is then transmitted to the metatarsals through the tarsal bones. The metatarsals are arranged in a curved arch-like structure, which helps in distributing the body weight evenly across the foot. This arch-like structure acts as a shock absorber, reducing the impact of the body weight on the foot while walking. The metatarsals also provide stability and balance to the foot, preventing excessive rolling or twisting during locomotion. As the body weight is transferred to the metatarsals, the plantar ligaments and muscles attached to these bones help in maintaining the arch of the foot. These ligaments and muscles work together to support the metatarsals and prevent the foot from collapsing under the body weight. In addition, the metatarsal heads are covered with thick layers of fat pads, which provide cushioning and protection to the bones during weight-bearing activities.- The metatarsals form the foundation of the foot, supporting the body weight and facilitating efficient movement during walking. Their unique structure and function make them essential for maintaining proper posture, balance, and stability while engaging in various activities. Understanding the role of metatarsals in weight-bearing activities is crucial for preventing injuries and maintaining optimal foot health.
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