Question

Which of the following match is correct

• A. Hormone - Oxytocin
  Effect - Milk ejection hormone
• B. Hormone - Parathyroid hormone
  Effect - Decreases blood calcium level
• C. Hormone - Adrenaline
  Effect - Decreases heart rate
• D. Hormone - Thyroxine
  Effect - Decreases BMR

Answer 1

The correct option is A Hormone - Oxytocin

Effect - Milk ejection hormone
Oxytocin hormone is synthesised by hypothalamus and stored and released by posterior pituitary. In females it stimulates vigorous contraction of the uterus at the time of child birth, and milk ejection from the mammary gland.

Parathyroid hormone is released by parathyroid gland. It is responsible for increasing blood calcium levels. When there is fall in blood calcium levels below normal. Parathyroid hormone is released and it causes bone resorption resulting in movement of calcium from bone to blood.

Adrenaline hormone is synthesised and released by adrenal medulla. It is an emergency hormone or hormone of fight or flight. It increases the heartbeat, the strength of heart contraction and the rate of respiration. It also increases alertness, pupillary dilation, piloerection (raising of hairs), sweating etc

Thyroxine hormone is produced and released by thyroid gland. It plays an important role in the regulation of the basal metabolic rate. It controls the metabolism of carbohydrates, proteins and fats.