All from Mesoderm, except the eye muscles that originate from ectoderm
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.
Mesoderm forms muscles .
Mesoderm
The heart is derived from the mesoderm, along with skeletal muscles and some other body organs.
The middle germ layer is called mesoderm. It gives rise to structures like muscles, bones, and the circulatory system in the developing embryo.
Endoderm: (most internal germ layer) gives rise to the lining of the digestive tract and the organs derived from it, such as the liver and lungs of vertebrates.Mesoderm: (middle germ layer) forms muscle, the skeletal system, and the circulatory system.Ectoderm: (most exterior germ layer) gives rise to the outer covering and, in some phyla, to the central nervous system.
Ectoderm
endoderm
The three primary germ layers in the gastrula are the ectoderm (outer layer), mesoderm (middle layer), and endoderm (inner layer). Each layer gives rise to different tissues and organs in the developing embryo.
The skin is derived from the ectoderm germ layer during embryonic development. The ectoderm gives rise to the outermost layer of the skin, called the epidermis, as well as structures such as hair, nails, and certain glands.
Gastrulation is first step towards germ layer development .
Cells of the nervous system differentiate from the ectoderm germ layer during embryonic development. The ectoderm gives rise to not only the nervous system, but also to structures such as the skin and hair.