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Which is not a function of the skeletal system? (a) support, (b) hematopoietic site, (c) storage, (d) providing levers for muscle activity, (e) generating heat.
Introduction:
Skeletalsystem includes all the joints and bone of the body, which provide support and maintain the body shape of an organism. However, bones are a complex mineral (calcium and phosphate structure) having many cells and protein fibers. Skeletalsystem provides the attachment points for body muscles to allow body movement. In addition to this, functions such as immunity and protection are also served bya skeletalsystem as it acts as a site for blood cell and immune cells (B-cells, and T-cells) formation.
Answer to Problem 1RQ
Correct answer:
Generating heat is not a function of the skeletal system.
Explanation of Solution
Justification for the correct answer:
Option (e) is given that the skeletal system is not involved in heat generation. The integumentary system is involved in the production of heat. Temperature regulation (homeostasis) of the body is maintainedby the epidermal skin. Therefore, the skeletal system is not involved in generating heat for homeostasis. Hence, option (e) is correct.
Justification for the incorrect answers:
Option (a) is given that skeletal system provides support. Bones in the skeletal system provides a framework that supports the body and other soft organs. For example, the rib cage supports the thoracic walls and protects the lungs for respiration, and limb bones act as a body pillar for movement and body trunk. So, it is an incorrect option.
Option (b) is given that the skeletalsystem act as hematopoietic sites. Most red blood cells and immune cells (B-cells and T-cells) formation occurs in the bone marrow cavity of the bones. Hematopoeisis confers immunity to an individual against infectious agents. So, it is an incorrect option.
Option (c) is given that the skeletalsystem acts as a storage site. Bone is a reservoir of minerals (calcium and phosphate) and growth factors. The minerals and growth factors then were released into the bloodstream as ionic form and distributed in different parts of the body. So, it is an incorrect option.
Option (d) is given that the skeletalsystem provides levers of muscles activity. Skeletal muscles attach to the bone through tendons and provide body movements and locomotion. So, it is an incorrect option.
Hence, options (a), (b), (c), and (d) are incorrect.
Thus, it can be concluded that the skeletal system is not involved in the heat generation rather it is significant in providing support and locomotion.
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