these sites were the brain ectoderm around the lens and brain ventricles , the anterior lobe of the pituitary gland , the upper and lower jaw , the caudal sclerotomic half of vertebral column , the limbs , the stomach , and the epithelial tissues of the lung , the pancreas , the small intestine , and the metanephros .
C0006104
brain
C0007799
brain ventricles