Question

Identify the hormone with it’s correct matching of source and functions

• A. Oxytocin – posterior pituitary, growth and maintenance of mammary glands
• B. Melatonin – pineal gland, regulates the normal rhythm of sleep wake cycle
• C. Progesterone – corpus luteum, stimulation of growth and activation of female secondary sexual characters
• D. Atrial natriuretic factor – ventricular wall, increases the blood pressure

Answer 1

The correct option is B Melatonin – pineal gland, regulates the normal rhythm of sleep wake cycle

Oxytocin is produced by hypothalamus and generally secreted by posterior pituitary. It stimulates secretion of milk from mammary glands; causes contraction of uterus at the time of child birth. Progesterone is secreted by corpus luteum. It stimulate uterus for preganancy, implantation formation of placenta and development of mammary glands. Atrial natriuretic factor is secreted by atrial wall in response to an increased return of the venous blood. This hormone regulates the blood volume through increased excretion of ions and water.