Question

Certain hormones released from the anterior lobe of the pituitary gland are given.
Thyroid stimulating hormone (TSH)
Adreno cortico tropic hormone (ACTH)
Gonadotropic hormone (GTH)
1.Write the common feature of these hormones.
2.Write one function of ACTH and TSH.
3.Name two hormones secreted by action of GTH.

Answer 1

Hint: The anterior pituitary also known as adenohypophysis has the important role in the regulation of endocrine function by the production and release of hormones. The production of tropic hormones by anterior pituitary is controlled by hypothalamus.

Complete answer:
1.Posterior pituitary do not have the capability to synthesize hormones it only stores them on the other hand the anterior pituitary manufacture hormones.
2.The hormones produced by the anterior pituitary are released into the systemic circulation and with the help of blood hormones reached to their target organs to show a physiologic response that is release of a target organ hormone.
3.The target organ produced hormones also have the effect on the function of anterior pituitary function and also affect the release of hypophysiotropic neuropeptides, balancing an integrated feedback control system of endocrine function .
a.These all hormones are stimulating hormones.
b.ACTH- Stimulates the activity of adrenal Cortex. TSH -Stimulate the activity of thyroid gland
c.The hormones secreted by anterior pituitary are Testosterone, oestrogen and progesterone.

Note: Secretion of hormones from the anterior pituitary is controlled by two types of hormones that is secreted by the hypothalamus: Releasing hormones and inhibiting hormones.
Releasing hormones stimulate the secretion of hormones and the inhibiting hormones that inhibit secretion from the anterior pituitary.