Problem:

Question 1: Embryology: Choose the one correct relation between the adult structure and the embryonic structure giving rise to it.

A. vertebrae: from the intermediate mesoderm.

B. the slippery serous membrane that lines the coelom: from endoderm.

C. neural tube: from somites.

D. skeletal muscles of the limbs: from myomeres.

E. dermis of the skin: from splanchnic mesoderm.

Question 2: What does the embryonic notochord give rise to?

A. nucleus pulposus

B. spinal cord

C. vertebrae

D. digestive tube

E. coelom

Question 3: An epithelium that functions in secretion, nutrient absorption, or pumping ions is most likely to be:

A. stratified squamous

B. simple squamous

C. stratified cuboidal

D. stratified columnar

E. simple columnar

Question 4: During development, when does the flat embryonic disc fold into the cylindrical body shape (tadpole-like)?

A. Week 1

B. Week 2

C. Week 4

D. Week 8

E. Week 20

Include source of information for best answer.