Case Study 2 Bone Tissue Questions and Answers

1686 Words Aug 1st, 2015 7 Pages
Module 04 Case Study: Bone Tissue
Part I— “Marissa” Questions

1. Describe bone tissue and the role each component plays in bone physiology and remodeling. What is the difference between compact and spongy bone? (2 points)

Bone tissue is composed of bone cells and extracellular matrix. It is continuously remodeling its extracellular matrix according to the stresses placed upon it. It has a lot of blood flow and it is supplied by the nervous system. The bone cells includes; Osteocytes, osteoblasts and osteoclasts. The osteoblasts build and repair the bone matrix; the osteocytes are the mature cells that have become surrounded by the matrix while the osteoclasts chew up or break down the bone matrix. The difference between the spongy and
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(1 point)

Yogurt, Collards, Skim milk ,whole milk, Black-eyed peas, salmon, Calcium-set tofu, Cheese food, Trail mix (nuts, seeds, chocolate chips),Baked beans, Cottage cheese, Iceberg lettuce, Green peas, Soy milk, Oranges, spinach, Kale, Okra, soy beans, white beans and Almonds.
2. Discuss the importance of Vitamin D to calcium absorption. (1 point)

Calcium cannot be absorbed properly without the presence of vitamin D. Vitamin D enables the formation of calcitriol, a hormone that regulates levels of calcium in the body and bone growth. It also promotes calcium absorption. The body requires vitamin d to be able to absorb calcium.

3. Discuss calcium supplementation and the recommended daily dosages. (1 point)

Calcium supplementation is the use of calcium supplements to make up the recommended dietary allowance when one’s diet falls short of calcium. If you already get the right amount of calcium in your diet then you do not need calcium supplements. Calcium supplementation is important because one needs calcium to build and maintain strong bones. However, if you do not get enough calcium in your diet then one needs supplements. If you decide to take calcium supplements, it is good to know how much one needs, the best ones to use as well as the pros and cons of calcium supplements.
The recommended dietary allowance of calcium for adults between the ages of 19 to 50 years is 1000mg for both men and women. The RDA for adult men between 51 to 70 years is 1000mg while
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