Question Detail
Question
Which one of the following sets is of ectodermal derivative?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Ectodermal derivatives include the central nervous system (brain and spinal cord), the pituitary gland (from Rathke's pouch, an ectodermal invagination), and the pineal gland (from the epithalamus). The thyroid (A) is endodermal; liver and pancreas (B) are endodermal; heart (D) is mesodermal, while eye (partly ectodermal and mesodermal), dentine (mesodermal), and skeleton (mesodermal) are not purely ectodermal.
Hint
Recall the three germ layers and their major derivatives, focusing on the nervous system and related structures.