Write the name any 4 duct less gland with function
Answers
1. Thymus
Located: Gland like structure situated in front of the trachea behind the top of the breastbone.
Function: In early childhood plays some part in building resistance (immunity) to disease and physical development.
2. Thyroid
Located: A two-lobed gland found in all vertebrates located in front of and on either side of the trachea.
Secretion: It secretes thyroxine which contains 65% iodine. Rate of production is regulated by the pituitary gland.
Function: It regulates metabolism. Deficiency causes dwarfness in children called cretinism and myxodema or gill’s disease in adults. Its deficiency also causes goitre which is the enlargement of thyroid gland.
3. Para-Thyroid
Located: Four, small kidney-shaped glands that lie in pairs near or within the lateral lobes of the thyroid glands.
Secretion: It secretes parathormone.
Function: Raise the level of calcium in the blood. Its deficiency causes tetany. It regulates calcium in blood and helps in growth. Removal of these glands may cause death.
4. Prostrate
Located: A gland present in males surrounding urethra at the neck of the bladder. The urine passes through it.
Secretion: Prostatic secretion is mixed up with sperms and other fluids to make up the semen.
Function: Secretion is essential to the general functions of the human body related to blood pressure and sexual potency. In men above 50 enlargement of this gland is common but if disorder exists then surgical removal is required.