Which term refers to the metatarsus and phalanges of the toes?

The term "metatarsophalangeal" specifically refers to the joints and the region that includes both the metatarsals (the long bones in the foot) and the phalanges (the bones of the toes). This term is derived from the combination of "metatarsus," which relates to the bones of the foot between the ankle and the toes, and "phalangeal," which pertains to the bones of the toes themselves. The metatarsophalangeal joints are critical for foot movement, providing the flexibility necessary for walking and running.

Understanding this term is essential in the context of anatomy and physiology, as it gives insight into the structure and function of the foot. The other terms provided do not relate to the metatarsus and phalanges specifically. For instance, "fibulo-tarsal" pertains to the fibula and the tarsal bones, while "cubitophalangeal" involves the cubitus (elbow region) and phalanges, and "cervicobrachial" refers to the neck and arm area. Therefore, the correct answer emphasizes the anatomical linkage between both the metatarsus and the phalanges.