Question

Which of these is not secreted by adenohypophysis?
A. FSH
B. ICSH
C. LH
D. hCG

Answer 1

Adenohypophysis is anterior lobe of the pituitary gland and it secretes around 9 hormones like Prolactin, MSH, TSH and many more.

Complete answer:
First of all you should know what adenohypophysis is. It is the main organ of the endocrine system which is the anterior lobe of the pituitary gland. It secretes hormones which are:

Adrenocorticotropic hormone (ACTH)
Thyroid-stimulating hormone (TSH)
Luteinising hormone (LH)
Follicle-stimulating hormone (FSH)
Prolactin (PRL)
Growth hormone (GH)
Melanocyte-stimulating hormone (MSH)
Interstitial-cell stimulating hormone (ICSH)
If we look at option A which is FSH and it is follicle stimulating hormone which is secreted by anterior part of pituitary gland and it functions to stimulate the growth of ovarian follicles in females and in males it functions as seminiferous tubules. Since, it is released from adenohypophysis. Therefore, it is not the correct answer.
Moving to option B which is ICSH, it is Interstitial-cell stimulating hormone, it is released from the anterior lobe of pituitary gland and its function is to stimulate the interstitial call of the testes in male to produce the testosterone. You can say it is similar to the LH in females. Therefore, this option is incorrect.
Moving to option C which is LH, it is luteinising hormone. It is also produced by anterior lobe of pituitary gland It functions in females to trigger the ovulation and also in the development of corpus luteum . Since it is released from adenohypophysis. Therefore, it is not the correct answer.
Last option is hCG, it is human chorionic gonadotropin hormone which is produced by those cells which are in the surrounding of the growing embryo and its function is formation of placenta after implantation. It is not released by the anterior lobe of the pituitary gland and therefore it is the correct option.

Thus, the correct option is D which is hCG since it is not secreted by adenohypophysis.

Note: FSH, ICSH, LH are released by the anterior lobe of pituitary gland which is adenohypophysis and only hCG from the among options is not released by adenohypophysis and therefore the last option is correct as in the question that hormone is asked which is not released by adenohypophysis.