Question

Pars distalis region of pituitary does not produce these hormones
I. Melanocyte stimulating hormone
II. Vasopressin
III. Prolactin
IV. Growth hormone

• A. III only
• B. I and IV only
• C. II and IV only
• D. I and II only

Answer 1

Answer: (D)

I and II only

Pituitary gland is divided into an adenohypophysis and a neurohypophysis. Adenohypophysis consists of two portions, pars distalis and pars intermedia. The pars distalis region of pituitary, produces growth hormone (GH), prolactin (PRL), thyroid stimulating hormone (TSH), adenocorticotrophic hormone (ACTH), luteinizing hormone (LH) and follicle stimulating hormone (FSH). Pars intermedia secretes only one hormone called melanocyte stimulating hormone (MSH). Neurohypophysis (pars nervosa) stores and releases two hormones called oxytocin and vasopressin.

I. Melanocyte stimulating hormone (MSH) - pars intermedia

II. Vasopressin - pars nervosa

III. Prolactin - pars distalis

IV. Growth hormone - pars distalis

So, the correct answer is 'I and II only'.