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The mesoderm.
Bone is derived from the mesoderm germ layer during early embryonic development. Mesoderm gives rise to the skeletal system, including bones, cartilage, muscles, and connective tissues.
Muscle tissues are derived from the mesodermal layer of the embryonic germ cells through a process called myogenesis.
Homologous structures develop from the same embryonic tissue but mature into different forms in different species. An example is the pentadactyl limb in vertebrates, where the same bones form the wings of a bat, flippers of a whale, and arms of a human.
The layer of cells in the embryo that will develop into the epidermis and nervous system is the ectoderm. This outermost germ layer forms during embryonic development and gives rise to structures such as the skin, hair, nails, and the entire nervous system, including the brain and spinal cord.
Corpus bones are usually referencing the bony structures that make up the skeletal system. These bones develop from mesoderm tissue during embryonic development. The term "corpus" itself comes from Latin, meaning body or structure.
The Origin of corpus bones is Corpse
Embryonic stem cells that are pluripotent can develop into any type of cell.
The bones of the skull and clavicle develop through a process called intramembranous ossification. This is where bone tissue forms directly within embryonic or fibrous tissue, without a cartilage intermediate. Specialized cells called osteoblasts are involved in this process, laying down new bone tissue.
The middle layer is formed during the gastrulation. This layer develops into muscles, bones and blood vessels.
The mesoderm layer lines both surfaces of a true coelom. The mesoderm is one of the embryonic tissue layers that forms during gastrulation and gives rise to structures such as muscles, bones, and connective tissues. It surrounds the developing coelom, a body cavity located between the digestive tube and the outer body wall.
The middle layer of the embryo is called the mesoderm. It gives rise to structures such as muscles, bones, cartilage, blood vessels, and part of the circulatory system. The mesoderm forms between the outer ectoderm and inner endoderm during early embryonic development.