Concept explainers
Introduction:
The bone is a form of connective tissue. The bone matrix is produced by the embedded bone cells within it. The main components of bone are the collagen and mineral elements. The collagen fibers provide the matrix with flexible strength, while the mineral elements provide strength for weight-bearing. Bones give shape to the body and perform many other functions.
Answer to Problem 1RAC
The correct answer is option (d) vitamin D storage.
Explanation of Solution
Explanation/justification for the correct answer:
Option (d) vitamin D storage. The bones store some minerals present in the blood. They are released from the bone into the blood if the concentration of these minerals falls. Calcium and phosphorus are the main minerals stored in bone. Vitamin D is a vitamin that is crucial for the absorption of vitamin D which stores in the fat cells of the body. So, the correct answer is option (d) vitamin D storage.
Explanation for incorrect answer:
Option (a) internal support and protection. Bone is the major supporting tissue of the body. It is hard and protects the organs. For example, the rib cage protects the heart, lungs and other organs of the thorax. So, this is an incorrect answer.
Option (b) attachment for the muscles. Skeletal muscles attach to bones through tendons. The contraction of the muscles moves the bones, producing body movements. Joints allow movement between bones. So, this is an incorrect answer.
Option (c) calcium and phosphate storage. The bones store some minerals present in the blood. They are released from the bone into the blood if the blood levels of these minerals fall. Calcium and phosphorus are the main minerals stored in bone essential for many physiological processes. So, this is an incorrect answer.
Option (d) blood cell production. Many bones contain cavities filled with red bone marrow which forms blood cells and platelets. So, this is an incorrect answer.
The bones support the internal organs and attach muscles with tendons. They store essential minerals like calcium and phosphorus and help to produce blood cells and platelets.
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Chapter 6 Solutions
EBK SEELEY'S ANATOMY & PHYSIOLOGY
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