Parathyroid hormone
A. is produced by the thyroid gland
B. is released when blood calcium levels fall
C. stimulates osteoblasts to lay down new bone
D. stimulates calcitonin release
Answer:B
Parathyroid hormone
A. is produced by the thyroid gland B. is released when blood calcium levels fall C. stimulates osteoblasts to lay down new bone D. stimulates calcitonin release