Chemical Coordination And Integration

Acromegaly is caused by the hyper-secretion of growth hormone from pituitary gland in adults. It is characterised by disproportionate increase in size of bones of face, hands and feet. Some important disorders related to thyroid gland are Grave's disease, Cretinism, Myxoedema or Gull's disease, goitre, Hashimoto's disease etc.

Parathyroid glands located behind the thyroid gland, produce a hormone called parathormone. This hormone maintains calcium and phosphorus balance in the body. Thus, if a person is having problem with calcium and phosphorus metabolism in the body, this means, his parathyroid glands are not functioning properly.

Answer (d) Cortisol

Answer (b) Parathyroid ? Tetany

Answer (c) Extra growth in hands, feet and lower jaw

Answer (c) Goitre