The word "tarsal arch" is spelled with a /t/ sound at the beginning, which is followed by an /ɑ/ sound. The next two letters, "r" and "s", are pronounced simultaneously, as a blend of the two sounds. The next syllable is pronounced with a short /æ/ sound, followed by an /l/ sound. The final syllable is pronounced with an /ɑ/ sound, followed by a voiceless /r/ sound and a voiceless /t/ sound. The "tarsal arch" refers to the arch of bones that runs along the midfoot, connecting the heel bone to the ball of the foot.
The tarsal arch refers to the anatomical structure formed by the bones and ligaments in the human foot that provide support and stability to the arch of the foot. It is a crucial component of the overall arch structure in the foot, which includes both longitudinal and transverse arches.
The tarsal arch is primarily composed of the tarsal bones, a group of seven small bones located in the rearfoot region of the foot. These bones include the calcaneus, talus, cuboid, and the three cuneiform bones. Together, they form a semi-rigid foundation for the arch.
The arch is maintained and reinforced by several ligaments and tendons. Ligaments, such as the plantar calcaneonavicular ligament (also known as the spring ligament) and the long and short plantar ligaments, connect the tarsal bones to support the arch. Additionally, the tibialis posterior tendon plays a crucial role in maintaining the tarsal arch by providing dynamic support to the structure.
The tarsal arch plays a vital role in weight distribution and shock absorption during walking and running. It helps to distribute the force generated by the body's weight evenly across the foot, reducing strain on individual bones and joints. The arch also allows for flexibility and adaptation to different terrains, enabling efficient movement and stability.
Problems with the tarsal arch can lead to various foot conditions, such as pes planus (flat feet) or pes cavus (high arches). These conditions may cause discomfort, pain, or instability in the foot. Treatment options for tarsal arch issues range from physical therapy and orthotics to surgical interventions, depending on the severity of the condition and individual needs.
Arcus tarseus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "tarsal arch" derives from two root words: "tarsal" and "arch".
1. Tarsal: The term "tarsal" refers to the bones found in the human foot or the foot of other vertebrates. It comes from the Late Latin word "tarsalis", which is derived from the Latin word "tarsus". In Latin, "tarsus" refers to the flat surface of the foot or the flat of the foot. This Latin word has its roots in the Greek word "tarsos", meaning "flat of the foot" or "edge of the eyelid".
2. Arch: The word "arch" comes from the Old English word "ærce", which means "bow, arch". This Old English term is related to the Old High German word "ercha", meaning "arc, bow".