Final answer:
Somites contribute to the development of skeletal muscles in the body wall and limbs, dermal skin, vertebrae, and ribs, while the appendicular skeleton of the limbs arises from embryonic mesenchyme.
Step-by-step explanation:
The portion of the somite that develops into the limbs and body wall is particularly associated with the formation of the skeletal muscles of the body wall and limbs. Somites, derived from mesodermal cells adjacent to the neural tube, differentiate into various connective tissues. While the skeletal muscles excluding those of the head and limbs develop from mesodermal somites, skeletal muscle in the limbs arise from the general mesoderm. Specifically, the cells from somites give rise to myoblasts, muscle-forming stem cells that migrate and fuse to form muscle tissue. Additionally, the somites also contribute to the dermis of the dorsal skin as well as the vertebrae and ribs.
During the development of limbs, the appendicular skeleton arises from embryonic mesenchyme. Limb buds are stimulated by the apical ectodermal ridge, after which the mesenchyme differentiates into cartilage and bone that will form the structure of the future limbs.