myotome

A segmental mass of mesoderm in a vertebrate embryo that differentiates into skeletal muscle.

A muscle or group of muscles derived from one somite and innervated by a single segment of a spinal nerve.

A knife for dividing muscle during surgery.

A muscular segment or metamere; a myocomma. See cut under Pharyngobranchii.

An instrument for dividing a muscle.

A muscular segment; one of the zones into which the muscles of the trunk, especially in fishes, are divided; a myocomma.

One of the embryonic muscular segments arising from the protovertebræ; also, one of the protovertebræ themselves.

The muscular system of one metamere of an articulate.

In vertebrate embryonic development, a group of tissues formed from somites that develop into the body wall muscle.