Which of the following embryonic materials is matched with a

Which of the following embryonic materials is matched with a correct post-natal (after birth) derivative? (Chose the most correct answer.)

A.Mesoderm, skin

B.Neural crest peripheral nervous system

C.Endoderm, kidneys+ gonads

D.Ectoderm, most, but not all of skeleton

E.Mesoderm, skeleton

Solution

B. Neural crest peripheral nervous system

The neural tube develops into brain and spinal cord. The nerve cells and other cells of the nervous system develop from the neural crest cells (formed from raised edges of neural plate).

The innermost layer, the endoderm, develops into the liver, endocrine glands, epithelial linings of the digestive tract, and portions of the inner ear.

The outermost layer, or ectoderm, develops into the nervous system, portions of the eye and teeth, posterior pituitary gland, and adrenal medulla.