The parathyroid glands produce and secrete PTH, a peptide hormone, in response to low blood calcium levels (Figure 2). PTH secretion causes the release of calcium from the bones by stimulating osteoclasts, which secrete enzymes that degrade bone and release calcium into the interstitial fluid.
The Drury Plaza Hotel Pittsburgh Downtown is scheduled to open around Winter 2016. Please note, we are currently accepting reservations for arrival February 23, 2017 and beyond. The Drury Plaza Hotel Pittsburgh Downtown features flexible meeting space and free wifi to accommodate a wide variety of groups.
Popular Hotels Near Liberty Bell. 1  Club Quarters Hotel in Philadelphia 4 stars. 2  The Windsor Suites Philadelphia Wonderful 9.1. 3  AKA Rittenhouse Square 4 stars.  Morris House Hotel 3 1  stars. Society Hill Hotel at Independence Park 2 stars.  Penrose Hotel Philadelphia 3 1  stars. Rittenhouse 1715 - A Boutique Hotel 4  stars.