Define calcium rigor and calcium tetany. What role does dietary intake of calcium play in these disorders?
What will be an ideal response?
Blood calcium above normal results in calcium rigor: the muscles contract and cannot relax. Similarly, blood calcium below normal causes calcium tetany—also characterized by uncontrolled muscle contraction. These conditions do not reflect a dietary excess or lack of calcium; they are caused by a lack of vitamin D or by abnormal secretion of the regulatory hormones. A chronic dietary deficiency of calcium, or a chronic deficiency due to poor absorption over the years, depletes the bones. Again: the bones, not the blood, are robbed by a calcium deficiency.
You might also like to view...
People taking lithium are advised to maintain a consistent intake of _____ from day to day in order to maintain stable lithium blood levels
a. calcium b. zinc c. sodium d. alcohol e. potassium
What is the prevalence of binge-eating disorder in the general population, given the obesity epidemic?
a. 1%-5% b. 1%-10% c. 1%-15% d. 1%-20%
As an extra credit assignment, Professor Thompson had his nutrition class study different countries around the world that had wide-spread food insecurity. For the project students were asked to research socio-cultural norms, natural resources, climate, and government to learn more about causes of food insecurity in each student's selected country. The students were then asked to give a brief
report of their findings along with possible strategies for helping the country improve food security. Several commonalities were discovered among the students' reports. Most of Professor Thompson's students found the leading cause of death in children under the age of 5 to be ____. A) infectious diseases B) cancer C) dehydration D) type 1 diabetes
Combination hormonal contraceptives are least likely to be associated with _____.
A. weight gain B. decreased blood levels of HDL cholesterol C. increased risk of blood clots D. increased levels of triglycerides and LDL cholesterol E. increased blood glucose and insulin