Write a note on Parthenocarpy gland.

Explanation

(i) The parathyroid glands are four small oval bodies that are situated on the posterior surface of the thyroid lobes.
(ii) The chief cells of the gland are mainly concerned with secretion of parathormone.
(iii) The parathormone regulates calcium and phosphorus metabolism in the body. They act on bone, kidney and intestine to maintain blood calcium levels.
Parathyroid Dysfunction :
The secretion of parathyroid hormone can be altered due to following conditions.
(i) Removal of parathyroid glands during thyroidectomy (removal of thyroid) causes decreased secretion of parathormone . The conditions are
(ii) Muscle spasm known as Tetany (sustained contraction of muscles in face, larynx, hands and feet).
(iii) Painful cramps of the limb muscles.