Tarsus refers to a anatomical term that has different meanings depending on its application to various organisms. In human anatomy, the tarsus is a part of the foot that comprises the seven bones between the tibia and fibula (shin) and the metatarsus (forefoot), forming the ankle and back part of the foot. These bones include the calcaneus (heel bone), talus (ankle bone), navicular, and the three cuneiform and cuboid bones. Together, they create and support the arch of the foot, allowing the foot to bear weight and facilitating movements such as walking, running, and jumping.
In zoology, the tarsus refers to the segment of the leg found in birds, mammals, and some reptiles. It is situated between the tibia and metatarsus and is composed of several small bones. In birds, specifically, the tarsus forms the lower part of the leg and includes the tarsometatarsus, which consists of fused bones. The tarsus provides support and aids in locomotion, allowing animals to walk, perch, grasp objects, and perform other functions.
Overall, the term tarsus pertains to the skeletal structure found in both humans and animals, forming an integral part of the foot or leg, depending on the specific context. Its role is to provide support, stability, and mobility for different species, facilitating their movements and daily activities.
