Zoology - Chemical Coordination and Integration Question with Solution | TestHub
The pituitary gland is located in a bony cavity called ______P______ and is attached to hypothalamus by a stalk known as ______Q_____. It is divided anatomically into an adenohypophysis and a neurohypophysis. Adenohypophysis consists of two portions,_______R________and _______S_______. The _____R______ region of pituitary, produces ______T_______, prolactin (PRL), thyroid stimulating hormone (TSH), adrenocorticotrophic hormone (ACTH) and gonadotropins (luteinizing hormone (LH) and _____U______.
Options:
Answer:
Solution:
I. Adenohypophysis - It is divisible into
A. Pars distalis (anterior pituitary) - Growth hormone (GH), Prolactin (PRL), Thyroid-stimulating hormone (TSH), Adrenocorticotrophic hormone (ACTH), Luteinizing hormone (LH) and Follicle-stimulating hormone (FSH).
B. Pars intermedia - Melanocyte stimulating hormone (MSH).
II. Neurohypophysis (Pars nervosa or Posterior pituitary) - Oxytocin and Vasopressin (or ADH).
- These hormones are actually synthesized by the hypothalamus and are transported to neurohypophysis via hypothalamic neurons.
