Which of the following match is correct?

• Hormone	Effect
  Oxytocin	Milk ejection hormone

• Glucagon

  Decreases blood sugar level

• Adrenaline

  Decreases heart rate

• Thyroxine

  Decreases BMR

A.

Oxytocin is a hormone that causes both contraction of smooth muscle in the uterus during birth and expulsion of milk from the mammary glands during suckling. It is produced in the neurosecretory cells of the hypothalamus but is stored and secreted by the posterior pituitary gland.

Glucagon is a hormone, secreted by the $\mathrm{\alpha }$ (or A) cells of the islets of Langerhans in the pancreas, that increases the concentration of glucose in the blood by stimulating the metabolic breakdown of glycogen. It thus antagonizes the effects of insulin.

Adrenaline (epinephrine) is a hormone produced by the medulla of the adrenal glands, that increases heart activity, improves the power and prolongs the action of muscles, and increases the rate and depth of breathing to prepare the body for 'fright, flight, or fight'. At the same time it inhibits digestion and excretion.

Thyroxine is secreted by thyroid gland. It controls the rate of all metabolic processes in the body and influence physical development and activity of the nervous system.