To discuss:
The source of parathyroid hormone and multiple mechanisms by which it corrects hypocalcemia.
Introduction:
Mineralization is a process (crystallization) that deposits phosphate, calcium, and other ions (from blood plasma) in the tissues of the bone as hydroxyapatite. This process is initiated by the osteoblast by laying collagen fibers on the surface of the osteon. These fibers are coated with minerals that make the matrix hard. Only if the concentration of the products (of above minerals) in the plasma reaches the critical value (solubility product), the hydroxyapatite is formed. Sometimes, calcification is repressed by some inhibitors found in the tissue. This inhibitor is deactivated by osteoblast, and it enables the precipitation of the salt in the matrix of the bone. The initially formed crystals perform like a “seed of crystals” that attract more phosphate and calcium from the plasma.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Anatomy & Physiology: The Unity of Form and Function
- The role of hormones in the regulation of mental, physical development, linear growth of the body.arrow_forwardHow the Congential Adrenal Hyperplasia disease changes the normal pathway, highlighting the enzyme/protein that is defective.arrow_forwardThe role of pancreatic hormones in the regulation of body functions.arrow_forward
- To explain: The reason why injecting excess insulin could impair brain function.arrow_forwardList of clinical symptoms and an explanation of at least one of the major symptoms of Congential Adrenal Hyperplasia disease with respect to its biochemistry.arrow_forwardEndocrine glands and the hormones they releasearrow_forward
- Effect caused when the parathyroid gland fails to respond to calcium bound to it's receptorarrow_forwardHumoral regulation and Regulation of hormone secretion endocrine glandsarrow_forwardHormone Function Name and Structure of Attached Molecule Testosterone Progesterone Estradiol Cholic acid Deoxycholic acidarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningUnderstanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage