Question

Master gland of the body is:
a. Pituitary gland
b. Adrenal gland
c. Thyroid gland
d. None of the above

Answer 1

Hint: We know that there are two types of glands in our body: endocrine glands and exocrine glands. The exocrine glands are the glands that emit the required substances onto an epithelial external surface via way of a duct. The sweat, salivary, mammary, ceruminous, lacrimal, sebaceous, prostate, and mucous can be included in the major examples of exocrine glands. However, the endocrine glands are glands, which are normally ductless working under the control of the endocrine system.

Complete answer:
The endocrine and exocrine glands produce their hormones and products, unswervingly into the blood. The pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus, and adrenal glands can be included in the major glands of the endocrine system.
- The master gland of the human body is the pituitary gland. It is because the hormones released by this endocrine gland are the only hormone which is capable of controlling the other parts of endocrine glands, specifically the adrenal glands, ovaries, thyroid gland, and testes.
- It is present in the head and has a small structure. The other reason to call this gland as the master gland is, this gland can control the level of growth of the body.
- The other name of the suprarenal glands is the adrenal gland. These glands are sources of producing a variety of hormones which include adrenaline and the steroids aldosterone and cortisol.
- An endocrine gland in the neck which consists of two connected lobes is called the thyroid gland. The lower two-thirds of the lobes are made to connect by a thin group of tissue which is called the thyroid isthmus.

Hence, the correct answer is option (A).

Note: Now we got to know that the pituitary gland is the master gland and controls the body. However, the endocrine system alone cannot maintain the body. So, this system in the coordination of the nervous system gets the complete coordination of the body. They together take care of the harmonization of the body. In biological terms, the combination of nervous and endocrine systems is denoted as the neuroendocrine system.