Ectoderm
The intestinal tract develops from the endoderm, one of the three embryonic germ layers. The endoderm gives rise to the epithelial lining of the digestive tract, including the intestines, stomach, and associated organs like the liver and pancreas.
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.
Mesoderm forms muscles .
endoderm
Mesoderm
The middle germ layer is called mesoderm. It gives rise to structures like muscles, bones, and the circulatory system in the developing embryo.
The ectoderm is the germ layer covering the surface of the embryo and develops into the outer covering of the animal (in our case, our skin) and in some phyla, the nervous system. The mesoderm forms the muscles and most other organs between the digestive tract and the outer covering of the animal. The endoderm, which is the innermost germ layer, lines the developing digestive tube (referred to as the archenteron) and gives rise to the lining of the digestive tract or cavity and organs derived from it, such as the liver and lungs.
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.
No, it is not a germ . The short definition of diabetes is a malfunction or an inexsiant pancreas which regulate the Blood sugar index in the blood. So it is not a germ :)
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.
Gastrulation is first step towards germ layer development .