Question

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

Answer 1

Answer: Option B.

Neural crest and peripheral nervous system.

Explanation:

Neural crest are bilateral paired cells of the neural tube that arise from the ectoderm layer of the embryo. Thesescells move to different part of the body and differentiate into various cell types like melanocytes,cartilage and bone, smooth muscle, craniofacial, neurons, gangalia e.t.c. The neural crest running through neural tube develop into peripheral nervous system after birth. Peripheral nervous system consist of neurons and gangalia outside the nervous system The peripheral nervous system connect the central nervous system to organs, skin and limbs.