Ectoderm Germ Layer
- ne3 (neural, epidermis, eye, ear)
outer layer of the embryo, and it forms from the embryo's epiblast.
- The ectoderm develops into the surface ectoderm, neural crest, and the neural tube.
- The surface ectoderm develops into: epidermis, hair, nails, lens of the eye, sebaceous glands, cornea, tooth enamel, the epithelium of the mouth and nose.
The neural crest of the ectoderm develops into: peripheral nervous system, adrenal medulla, melanocytes, facial cartilage, dentin of teeth.
The neural tube of the ectoderm develops into: brain, spinal cord, posterior pituitary, motor neurons, retina.
Note: The anterior pituitary develops from the ectodermal tissue of Rathke's pouch.
- "dllp" (digestive, liver, lungs, pancreas)
- the stomach, the colon, the liver, the pancreas, the urinary bladder, the epithelial parts of trachea, the lungs, the pharynx, the thyroid, the parathyroid, and the intestines.
Mesoderm Germ Layer