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Skeletal System Video Lecture | Science & Technology for UPSC CSE
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FAQs on Skeletal System Video Lecture - Science & Technology for UPSC CSE
| 1. What is the skeletal system? |  |
| 2. How many bones are in the human skeletal system? | |
The human skeletal system consists of 206 bones. These bones are categorized into two main groups: the axial skeleton, which includes the skull, vertebral column, and ribcage, and the appendicular skeleton, which includes the bones of the limbs and the girdles that attach them to the axial skeleton.
| 3. What are the functions of the skeletal system? | |
The skeletal system has several important functions. Firstly, it provides structural support for the body, allowing us to stand upright and move. Secondly, it protects vital organs such as the brain, heart, and lungs. Additionally, the skeletal system serves as a storage site for minerals like calcium and phosphorus, which can be released into the bloodstream when needed. Lastly, the bone marrow within the skeletal system produces red and white blood cells.
| 4. How does the skeletal system enable movement? | |
The skeletal system enables movement through its interaction with muscles and joints. Muscles, which are attached to bones by tendons, contract and pull on the bones, causing them to act as levers. Joints, which are formed where two or more bones meet, allow for movement by providing flexibility and reducing friction between bones.
| 5. Can the skeletal system be affected by diseases or conditions? | |
Yes, the skeletal system can be affected by various diseases and conditions. For example, osteoporosis is a disease characterized by a decrease in bone density, making the bones more fragile and prone to fractures. Arthritis, on the other hand, is a condition that causes inflammation and stiffness in the joints. Other conditions, such as scoliosis (abnormal curvature of the spine) or osteogenesis imperfecta (brittle bone disease), can also impact the skeletal system.
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