Secreting active thyroid follicles are lined by which type of epithelium ?
Correct Answer: Columnar
Description: Ans. is 'a' i.e., ColumnarThis question is different from the one which was asked in session- 3.Here the examiner is asking about lining of thyroid follicles, which are secreting actively.Normally, thyroid follicle is lined by low couboidal epithelium. But, when they are active, their lining is tall columnar like."When inactive thyroid follicular epithelial cells are simple fiat or cuboidal cells, but when actively synthesizing or secreting thyroid hormone they are tall and columnar" Wheater's functional histology."Active follicular cells are columnar" Histology at a Glance."A thyroid follicle that is actively secreting thyroid hormones look somewhat different from one that is inactice. An inactive follicle is large, lined by flat cells and contains abundant colloid. In contrast, an active follicle is smaller, is lined by columnar cells and contains less colloid" Principles of medical physiology.
Category:
Anatomy
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now