99,000 Essays & Term Papers: Where You Buy Essays and Papers Online
Direct Essays, Where You Can Buy Essays and Papers Online

Instant Access to Buy Essays and Papers Online!
Acceptable Use Policy
Customer Service
Site Search


Login to View Essays and Papers Online

Join Now - Instant Access to Essays and Research Papers!

  Essay and Research Paper Topics
Acceptance Essays
Arts Essays
Custom Essays
English Literature Essays
Foreign
History Essays
Miscellaneous Research Papers and Essays
Movie Essays and Papers
Music Term Papers
Novels
People and Biography Research Papers
Politics Research Papers
Religion Research Papers
Science Essay Topics
Sports Research Papers
Technology Research Papers
 
  FAQ
Technical Support
Site Map
Direct Essays
 

 



Welcome to Direct Essays

This is a short summary of this paper!

Already a member? Go here to log in and view the entire paper!


Join Now!
by: Credit Card
Join Now!
by: Online Check
Join Now!
by: Phone 1-900
Special! View this paper for FREE!
  

calcium

Healthy bones have tensile and compressional strengths, similar to that of reinforced concrete. Besides providing structural support for the muscles and internal organs, bones also act as a reservoir for important minerals and elements such as calcium, magnesium, phosphorus, fluoride and sodium. Of these minerals, calcium is the most important for providing the essential bone infrastructure. In addition, bones play an integral role in the overall homeostatic control of calcium in the body (1). Approximately 97 to 99 percent of the body's calcium stores are found in bone.

Bones, being dynamic tissues, are constantly changing their structure as a result of the result of the opposing processes of deposition and resorption. This process is called remodeling (2). Osteoblasts are responsible for the deposition, or growth, of bones, and osteoclasts account for resorption, or breakdown. When bones start to resorb, the osteoclasts secrete proteolytic enzymes and acids that create small tunnels in the bone's internal structure. If the tissue is healthy and capable of growth, eventually osteoblasts will fill in these tun


As an individual grows, their bone mass increases. Maximum bone mass is attained between age 25 and 30. Beyond 30, especially in women, and also as a result of other factors such as drugs and diseases, bones can weaken and become more susceptible to fractures. By age 40, most individuals will start to lose bone mass. With increasing lost of bone mass, osteoporosis occurs. Osteoporosis is a bone disease in which bone tissue is normally mineralized, but the amount of bones is decreased and the structural integrity of trabecular bone is impaired (3). Cortical bone becomes more porous and thinner. This makes the bone weaker and more likely to fracture. Hence, according to the 1999 recommendations from the National Academy of Science (4), calcium should be given to women and men who have osteoporosis or who are at risk of getting it. The mechanistic details of the effects of calcium on the skeleton are complex. Calcium alters the bone-related hormones and possibly the lo!

Using pharmacological calcium doses to treat osteoporosis results in parathyroid hormone suppression, which in turn decreases bone loss (1).

Some common words found in the essay are:
Academy Science, , parathyroid hormone, bone mass, calcium absorption, tubular reabsorption, calcium absorption enhanced, bone remodeling, calcium reabsorption, calcium absorbed, magnesium phosphorus, absorption enhanced, hormone vitamin,
Approximate Word count = 758
Approximate Pages = 3 (250 words per page double spaced)


  

More Essays on calcium

calcium1156 words
Road Clears for Calcium Chlori358 words
The Element Calcium310 words
Osteoporosis833 words
Osteoporosis828 words

Look at even more essays on calcium
More Misc Essays

Professional Papers:
Calcium intake in children1573 words
Calcium Intake in Children1573 words
CalciumDependent ATPase3304 words
NUTRITION ampamp THE ELDERLY: CALCIUM AND BONE HEALTH1651 words
Calcium Intake and Dietary Behaviors3249 words
Hypothesis Testing of Osteoporosis4272 words
Special! View this paper for FREE!
Click here to JoinNow!
by: Credit Card
Click here to Join Now!
by: Online Check
Click here to Join Now!
by: Phone 1-900

 

All papers and essays are for research and reference purposes only!
Copyright 2002-2009 Direct Essays , LLC. All Rights Reserved. DMCA
Webmasters make $$$$
Saved Papers