Q.66 Following are associated with endocrine functioning of pituitary endocrine gland.

1. Pars convoluta
2. Pars intermedia
3. Pars rodita
4. Pars nervosa
5. Pars distalis

Choose the correct answer from the options given below :

1. B, D, E, A only
2. B, D, E only
3. A, B, C, D, E only
4. B, C, D, E only

   B, D, E only is the correct answer for pituitary endocrine functioning parts. Pars intermedia, pars nervosa, and pars distalis actively secrete hormones, while pars convoluta and pars rodita are not recognized pituitary structures.

   Pituitary Anatomy Overview

   The pituitary gland divides into anterior (adenohypophysis) and posterior (neurohypophysis) lobes, with endocrine functions spanning hormone synthesis and release. Pars distalis forms most of the anterior lobe, pars intermedia lies between lobes, and pars nervosa constitutes the posterior lobe.

   Component Analysis

   • Pars convoluta (A): Not a pituitary structure (possibly confused with kidney nephron terminology).

   • Pars intermedia (B): Correct—secretes melanocyte-stimulating hormone (MSH) in humans, more prominent in other vertebrates.​

   • Pars rodita (C): Not a recognized pituitary term (likely misspelling or fabrication).

   • Pars nervosa (D): Correct—posterior pituitary releases oxytocin and vasopressin stored from hypothalamus.​

   • Pars distalis (E): Correct—anterior pituitary core producing GH, PRL, TSH, ACTH, FSH, LH.​

   Option Breakdown

   Option	Parts Included	Why Valid/Invalid	Correct?
   B, D, E, A only	Pars intermedia, nervosa, distalis, convoluta	Includes nonexistent pars convoluta.	No ​
   B, D, E only	Pars intermedia, nervosa, distalis	All three confirmed endocrine-active regions.	Yes
   A, B, C, D, E only	All parts	Includes fabrications A and C.	No ​
   B, C, D, E only	Pars intermedia, rodita, nervosa, distalis	Contains invalid pars rodita.	No ​

   Pituitary endocrine pars intermedia nervosa distalis functioning drives hormone regulation essential for GATE Life Sciences endocrine system mastery, excluding non-pituitary terms.

   Valid Endocrine Regions

   Pars distalis: six tropic hormones; pars nervosa: neurohormones; pars intermedia: MSH.

   Invalid Terms

   Pars convoluta/rodita absent from pituitary anatomy.​

   Exam Tip

   Select B, D, E—standard anterior/posterior/intermediate lobe divisions.​