What is a myostome?

A myostome is a segment of muscle tissue in certain vertebrates, particularly in the context of embryonic development. It is derived from the somites, which are blocks of mesodermal tissue that form along the sides of the developing neural tube. Myostomes contribute to the formation of skeletal muscles, particularly in the trunk and limbs. In some species, myostomes can also refer to specific muscle segments in the body, aiding in coordinated movement.