Human skin color is determined by the interaction of melanin, carotene and hemoglobin. Storage of water, fat, glucose and vitamin D is also a function of the integumentary system, according to the AAD.
1 ExcelTest HSPT Courses offer an intensive program with 12 classes of 3 hours each over 4 - 5 weeks. 2  ExcelTest Courses offer unique and extremely effective strategies not taught anywhere else, by highly experienced, dynamic instructors.
Secondary hyperparathyroidism. Secondary hyperparathyroidism (SHPT) refers to the excessive secretion of parathyroid hormone (PTH) by the parathyroid glands in response to hypocalcemia (low blood calcium levels) and associated hyperplasia of the glands. This disorder is especially seen in patients with chronic kidney failure.