(11) A state or local government employee is exempt from the requirements of this section if he or she receives a total of at least six hours of training in suicide assessment, treatment, and management from his or her employer every six years.
The endoderm is one of the germ layers formed during animal embryogenesis. Cells migrating inward along the archenteron form the inner layer of the gastrula, which develops into the endoderm. The endoderm consists at first of flattened cells, which subsequently become columnar.
Developmental Aspects. Primary germ layers: ectoderm, mesoderm, and endoderm. Three layers of cells formed early in embryonic development. Specialize to form the four primary tissues. Nerve tissue arises from ectoderm. Muscle, connective tissue, endothelium, and mesothelium arise from mesoderm.