Q.Write the names of hormones and the glands secreting them for the regulation of following functions. a. Growth of thyroid and secretion of thyroxine. b. Helps in relaxing pubic ligaments to facilitate easy birth of young ones. c. Stimulate intestinal glands to secrete interstinal juice. d. Controls calcium level in the blood. e. Controls tubular absorption of water in kidneys. f. Urinary elimination of water. g. Sodium and potassium ion metabolism. h. Basal Metabolic rate. i. Uterine contraction. j. Heart beat and blood pressure. k. Secretion of growth hormone. l. Maturation of Graafian follicle.

Each listed function is traced to its one specific regulating hormone and the gland that secretes it.

Step 1 (a). Growth of the thyroid and secretion of thyroxine is regulated by Thyroid Stimulating Hormone (TSH), secreted by the anterior pituitary.

Step 2 (b). Relaxing the pubic ligaments for easy birth is the job of Relaxin, secreted by the corpus luteum of the ovary.

Step 3 (c). Stimulating intestinal glands to secrete intestinal juice is the job of Secretin (and related GI hormones), secreted by the gastro-intestinal mucosa.

Step 4 (d). Controlling blood calcium level is the job of Parathormone (PTH), secreted by the parathyroid glands (working antagonistically with calcitonin from the thyroid).

Step 5 (e). Controlling tubular water reabsorption in the kidney is the job of ADH (vasopressin), released from the posterior pituitary (made by the hypothalamus).

Step 6 (f). Urinary elimination of water is governed by the same hormone, ADH -- its deficiency increases water elimination (diabetes insipidus); its presence conserves water.

Step 7 (g). Sodium and potassium ion metabolism is regulated by mineralocorticoids, chiefly Aldosterone, from the adrenal cortex (zona glomerulosa).

Step 8 (h). Basal metabolic rate is regulated by Thyroxine, from the thyroid gland.

Step 9 (i). Uterine contraction (at birth) is triggered by Oxytocin, from the posterior pituitary (made by the hypothalamus). …

Work through the list function by function, naming the one hormone (and its secreting gland) most directly responsible for each, …

• Confusing ADH's role in water reabsorption (e) with its role in overall urinary water elimination (f) as if they were different hormones, when they are the same hormone viewed from two angles. …