Q. Consider the following statements I. Calcitonin is non-iodised II. Calcitonin is secreted by parafollicular cells III. Calcitonin regulates the calcium level in blood IV. Calcitonin is also called as TCT (Thyrocalcitonin) V. TCT is hyperglycemic agent (factor) Select the option containing correct statements from the above given statements
A) I, II and V
B) I, II, III and IV
C) III, IV and V
D) II, III, IV and V
Explanation
Calcitonin or Thyrocalcitonin (TCT) (i) Regulate calcium level in blood plasma by inhibiting bone breakdown (ii) It is non-ionised and secreted by para follicular cell of thyroid gland (iii) Being hypocalcemic and hypophosphatemic. It checks excess plasma $Ca^{2 +}$ and phosphate by decreasing mobilization of $Ca^{2 +}$ from bones
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.