Nobody downloaded yet

Calcium within the Human Body - Essay Example

Comments (0) Cite this document
Summary
Calcium is a mineral that is found plentifully in nature and the human body. This important mineral plays an essential role in bone assembly: 99% of the calcium in the organism is stored in bone tissue. The remaining 1% is in the bloodstream and extracellular fluids (Holick 2001)…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.6% of users find it useful
Calcium within the Human Body
Read TextPreview

Extract of sample
"Calcium within the Human Body"

Download file to see previous pages A fascinating interplay of pathways and signals are involved in calcium regulation. As research and new technologies evolve, new aspects are elucidated in these complex mechanisms. Various animal models have been used in order to understand the cellular responses and the hormonal regulation (Eckermann 2008).
Moe (2008) states "normal homeostatic regulation maintains serum levels, intracellular levels, and optimal mineral content in bone", summarizing the intricacy of structures and organs that contribute to "normal" levels. The major organs involved in the regulation of its metabolism are the parathyroid glands, the kidneys, the skeleton, and the gut (Wysolmerski & Insogna 2007). Our body obtains the necessary amount of calcium from two major sources: diet (through intestinal absorption) and bones (through calcium mobilization). Foods that include a high amount of calcium are diary milk, cheese yogurt, and green vegetables. The amount of calcium people need varies: young people need a high intake, so that growth and development are assured. Older women need calcium supplementation in order to prevent osteoporosis. Calcium is absorbed in the very beginning of the small bowel: duodenum and the first portion of the jejunum. The intestinal absorption is regulated by Vitamin D, and its mobilization is tightly regulated by various hormones and signaling mechanisms, with a continuous remodeling of calcium storage. For example, if calcium is not adequately obtained from diet, a series of hormonal mechanisms are set off in order to get the necessary amount from bones; if this process is sustained for a long period of time, bones weaken.

The kidneys are also important organs which regulate calcium metabolism and keep its blood levels (Choudhury & Levy 2007). In the different portions of the kidney, calcium is reabsorbed, so that equilibrium is achieved in the blood. Additionally, in both the proximal and distal nephrons, filtrated calcium is passively or actively absorbed into the bloodstream obtaining adequate levels in the urine. Those mechanisms can be modified with different drugs, which are used in certain conditions such as renal calculi. To review the impact of kidney disease in calcium metabolism, Hamdy (2007) has published an article where he explains the role of chronic kidney disease and the major disturbances seen in bone and mineral metabolism.

A review of calcium metabolism would not be complete without addressing bone processes. Bone undergoes remodeling in all life stages, but certainly this process is faster in younger individuals, and more significant in trabecular bone than cortical bone. Normal bones are formed by different substances. Most of the body's calcium is stored in the bones, along with phosphorus and, mostly, as calcium phosphate salts. The great majority (almost 99%) of the calcium is found in the skeleton and approximately 1% moves freely from and into the bones (Matos 2008). Two principal cells regulate bone formation and destruction: osteoclasts and osteoblasts. Osteoclasts resorb bone and are formed by numerous monocytes that fuse and take shape of a multinucleated cell. On the other hand, osteoblasts deposit new bone and arise from mesenchymal cells. The remainder component of bone ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Calcium within the Human Body Essay Example | Topics and Well Written Essays - 1500 words”, n.d.)
Retrieved from https://studentshare.org/science/1511485-calcium-within-the-human-body
(Calcium Within the Human Body Essay Example | Topics and Well Written Essays - 1500 Words)
https://studentshare.org/science/1511485-calcium-within-the-human-body.
“Calcium Within the Human Body Essay Example | Topics and Well Written Essays - 1500 Words”, n.d. https://studentshare.org/science/1511485-calcium-within-the-human-body.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Biol 232 Human Physiology - Answers to questions
No, Na+ and Cl- ions will not diffuse through the membrane because the concentrations of NACl inside and outside the artificial cell are equal. Ions diffuse through a permeable membrane down the concentration gradient (Saladin, 2009). That is, from a region of high solute concentration to a region of low solute concentration.
2 Pages(500 words)Essay
Human Physiological Systems
The release of the pressure during the opening of the brachial artery then gives the diastolic blood pressure. The values of the arterial blood pressure are recorded by the sphygmomanometer and reported in terms of millimeters of mercury. Through the arterial blood pressure measurement, the variation between the diastolic and systolic blood pressure during the cardiac cycle is measured.
4 Pages(1000 words)Essay
The negative effects of milk products on the human body
The milk of every species of mammal is said to be unique and specifically tailored to the requirements of that animal. For example, researches show cows' milk is three to four times as much richer in protein than human milk, with five to seven times the mineral content, but markedly deficient in essential fatty acids compared to human mothers' milk.
14 Pages(3500 words)Essay
Effects of Alcohol on the Human Body
Continuous usage of alcohol effects the brain cells thereby making those cells work slower. These effects include physical irregularities and cognitive and behavioral impairments with outcomes ranging in different severities ranging from prenatal death to subtle behavioral problems.
9 Pages(2250 words)Essay
Human Body
Burchett; The Book of Skin, by S. Connor; Prison Tattoos, by D. Hall; and Prose and Cons: Essays on Prison Literature in the United States, by Q. Miller; examining the ways in which corporeality is decorated by tattoos, violated by junkies' needles, and confined in prison.
8 Pages(2000 words)Book Report/Review
Human Nutrition
Forty-six grams of protein is my daily recommended amount yet my intake was 97 grams. In order to help reduce the protein intake, I can consume more milk and/or milk products such as yogurt as I need more calcium. Milk does not contain as much
2 Pages(500 words)Essay
Discuss the role of vitamin K, vitamin D and calcium on bone health across the lifespan and review the evidence that supplementation with vitamin D and calcium
Bones provide structural support to the body, assist in transportation, give protection to the vital organs and are the storehouse of calcium in the body. Though we may feel that our bones
8 Pages(2000 words)Essay
Effectivenes of vitamin D and calcium in preventing falls
Each year, in the UK falls from stairs account for more than 1000 deaths in older people and cause 330,000 serious injuries. Falls
26 Pages(6500 words)Essay
The human body
In the similar way digestive system provides the food to the cells that is delivered by the blood circulatory system. Functions as to control the body functions and systems. All the systems are connected to the nervous system through nerves and send and
9 Pages(2250 words)Essay
Microbial communities found within the human body
The human body contains over 10 times more microbial cells than human cells, although the entire microbial community of human body only weighs about 200 grams, with some weight estimates ranging as high as 3 pounds (approximately 48 ounces or 1,400 grams). Some consider
6 Pages(1500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Calcium within the Human Body for FREE!
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us