The hypophyseal pouch is involved in the formation of the
A) thyroid gland.
B) thymus.
C) pineal gland.
D) pituitary gland.

Question

Quizplus · Accepted Answer

The hypophyseal pouch (also known as Rathke's pouch) is a structure that arises from the roof of the embryonic mouth and gives rise to the anterior pituitary gland. Therefore, the correct choice is D, pituitary gland. Choices A, B and C are incorrect as they arise from different embryonic structures. The thyroid gland arises from the endoderm of the floor of the pharynx, the thymus arises from the third and fourth pharyngeal pouches, and the pineal gland arises from the neural ectoderm of the roof of the diencephalon.

The Hypophyseal Pouch Is Involved in the Formation of the