Question

Pancreas secrete hormones

• A. Vasopression and oxytocin
• B. Insulin and glucagon
• C. FSH and LH
• D. Epinephrine and norepinephrine

Answer 1

Answer: (B)

Insulin and glucagon

A. Vasopressin is secreted from the posterior part of pituitary gland. This hormone increases reabsorption of water in kidneys and this results in decreased rate of urine production.

Oxytocin is secreted from the posterior pituitary and helps in the contraction of uterus during childbirth and also stimulates release of milk from mammary glands i.e. lactation.

B. Insulin is secreted from the β cells of islets of Langerhans of pancreas. Insulin acts on hepatocytes and adipocytes and increases the uptake of cellular glucose and its utilisation. This leads to decreased blood glucose levels.

Glucagon is a peptide hormone. It is secreted from the αα-cells of islets of Langerhans in pancreas. It increases blood sugar level by acting on hepatocytes and stimulates breakdown of glycogen (Glycogenolysis) and synthesis of glucose from proteins and fats (Gluconeogenesis).

C. Follicle stimulating hormone (FSH) is secreted from the anterior part of pituitary gland. It stimulates the growth of ovarian follicles in females and seminiferous tubules in males.

Luteinizing hormone (LH) stimulates growth of ovarian follicles in females. In males this hormone is called interstitial cell stimulating hormone or ICSH and affects the Leydig cells of testes.

D. Epinephrine or Adrenaline, also known as emergency hormone, is secreted from the adrenal medulla. This hormone is associated with maintenance of homeostasis in body and is secreted in response to any kind of stress or emergency in the body.

Norepinephrine is the name for nor-adrenaline hormone secreted from adrenal medulla. It regulates blood pressure by causing vasoconstriction.

So, the correct answer is 'Insulin and glucagon'.