Changes

===Bone resorption===

===Bone resorption===

*Mediated by two hormones:

*Mediated by two [[Parathyroid Pathology#Hormonal Control|hormones]]:

**'''Parathyroid hormone (PTH)'''

**'''Parathyroid hormone (PTH)'''

***Produced by <u>chief cells in the parathyroid glands</u> in response to <u>decreased</u> serum calcium

***Produced by <u>chief cells in the parathyroid glands</u> in response to <u>decreased</u> serum calcium

***Produced by <u>C-cells in the thyroid glands</u> in response to <u>increased</u> serum calcium

***Produced by <u>C-cells in the thyroid glands</u> in response to <u>increased</u> serum calcium

***Inhibits osteoclasts

***Inhibits osteoclasts

===Bone dynamics===

===Bone dynamics===