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.

Question

Want to see the full answer?

Answer 1

Question

Chapter 7.4, Problem 7AYLO

Summary Introduction

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.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In as much detail as possible, hand draw a schematic diagram of the hypothalamic-pituitary- gonad (HPG) axis in the human male. Be sure to include all the relevant structures and hormones. You must define all abbreviations the first time you use them. Please include (and explain) the feedback loops.

A negligence action was brought by a mother against a hospital on behalf of her minor daughter. It alleged that when the mother was 13 years of age, the hospital negligently transfused her with Rh-positive blood. The mother's Rh-negative blood was incompatible with and sensitized by the Rh-positive blood. The mother discovered her condition 8 years later during a routine blood screening ordered by her healthcare provider in the course of prenatal care. The resulting sensitization of the mother's blood allegedly caused damage to the fetus, resulting in physical defects and premature birth. Did a patient relationship with the transfusing hospital exist?

18. Watch this short youtube video about SARS CoV-2 replication. SARS-CoV-2 Life Cycle (Summer 2020) - YouTube.19. What is the name of the receptor that SARS CoV-2 uses to enter cells? Which human cells express this receptor? 20. Name a few of the proteins that the SARS CoV-2 mRNA codes for. 21. What is the role of the golgi apparatus related to SARS CoV-2