Final answer:
The portion of the foot made up of the metatarsal heads, MTP joints, and IP joints includes the metatarsal bones and the phalanges of the toes. These bones articulate with each other to form the joints of the foot.
Step-by-step explanation:
The portion of the foot made up of the metatarsal heads, MTP joints, and IP joints includes the metatarsal bones and the phalanges of the toes. The metatarsal bones are the five elongated bones that form the anterior half of the foot, numbered 1-5 starting on the medial side. These bones articulate with the cuboid or cuneiform bones at their base, while their distal ends form the heads that articulate with the proximal phalanges of the toes to form the metatarsophalangeal (MTP) joints. The IP joints, also known as the interphalangeal joints, are the joints between the phalanges of the toes.