www.wessexneurosurgeon.com

Mr. Nijaguna Mathad

Consultant Neurosurgeon

Southampton

  PITUITARY GLAND

 

 Pituitary gland is situated at the base of the brain within pituitary fossa. Pituitary fossa is located at the roof of the sphenoid sinus, which is the largest air sinus at the back of the nose. Pituitary gland is of the size of a small broad bean, measuring 1.5cm X 1.0 cm. Its approximate weight is less than 0.75gm.

 

Pituitary gland is called as the “master gland” of the body, as it regulates all other hormone producing (endocrine) glands. Pituitary has two lobes, the anterior pituitary (adenohypophysis) and the posterior pituitary (neurohypophysis). Posterior pituitary lobe is connected to hypothalamus by pituitary stalk. Hypothalamus decides which regulatory hormones the pituitary gland should release.

 

Anterior pituitary releases the following hormones in response to hormonal signal from the hypothalamus-

GH (Growth Hormone) – which regulates the muscle and bone

TSH (Thyroid Stimulating Hormone)-stimulates  thyroid gland to release thyroxine, which regulates metabolism

FSH (Follicle Stimulating Hormone) & LH (Luteinizing Hormone) -  in women it stimulates ovaries to produce estrogen and in men it stimulates sperm production

Prolactin – stimulates breast tissue

ACTH (AdrenoCorticoTropic Hormone)- stimulates adrenal to produce steroids

 

Posterior pituitary releases the following hormones in response to neural signal from the hypothalamus-

ADH (AntiDiuretic Hormone)- stimulates kidneys to conserve water

Oxytocin- stimulates uterine contractions in labour and milk ejection in mother

 

See “Pituitary Gland” Leaflet by Pituitary Foundation

 

 

 

 

Anatomy of Pituitary Gland- Slide show

Pituitary Foundation Booklet on The Pitutiary Gland

NHS Secretary: 

Tina Dickie                                                                                Phone: 023812067888

Wessex Neurological Centre                                                    Fax: 02381204789

Southampton General Hospital                                                Tina.Dickie@uhs.nhs.uk

Southampton SO16 6YD

Private Secretary:

Janet Burnage                                                                 Phone: 023 8076 4357

Spire Southampton Hospital                                            Fax: 023 8076 4358

Chalybeate Close                                                    Janet.Burnage@Spirehealthcare.com

Southampton SO16 6UY