Select the choice that correctly associates the organ with its embryonic sources.
A)pituitary gland-mesoderm and endoderm
B)thyroid gland-mesoderm and ectoderm
C)adrenal gland (adrenal medulla and adrenal cortex)-ectoderm and mesoderm
D)skin-endoderm and mesoderm
E)jaws-mesoderm and endoderm

Question

Quizplus · Accepted Answer

The adrenal gland (adrenal medulla and adrenal cortex) is derived from the ectoderm and mesoderm. Pituitary gland is derived from the ectoderm (Rathke’s pouch) and thyroid gland from endoderm (thyroid diverticulum). Skin is derived from ectoderm and jaws from neural crest cells, which originate from ectoderm and mesoderm.

Select the Choice That Correctly Associates the Organ with Its