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1. What is the function of bone tissue?

Ans. Bone tissue serves several functions in the human body. It provides support and structure to the body, protects vital organs, allows for movement through its attachment to muscles, stores minerals like calcium and phosphorus, and produces red and white blood cells in the bone marrow.

2. How does cartilage differ from bone tissue?

Ans. Cartilage and bone tissue are both types of connective tissues, but they have some key differences. Cartilage is a flexible, avascular tissue that is found in areas such as the nose, ears, and joints. It is less rigid than bone and allows for smooth movement and shock absorption. In contrast, bone tissue is more rigid, highly vascularized, and contains cells called osteocytes that help maintain its structure.

3. What are the main types of bone tissue?

Ans. There are two main types of bone tissue: compact bone and spongy bone. Compact bone is dense and forms the outer layer of bones. It provides strength and support to the skeletal system. Spongy bone, also known as cancellous bone, is found inside bones and has a porous structure. It helps reduce the weight of bones while still providing structural integrity.

4. How does bone tissue heal after a fracture?

Ans. When a bone fractures, the body initiates a healing process known as bone remodeling. Initially, a blood clot forms at the site of the fracture, and then a soft callus made of fibrous tissue develops. This callus eventually hardens into a hard callus consisting of cartilage and bone. Osteoblasts, specialized bone cells, play a crucial role in this process by laying down new bone tissue. Over time, the hard callus is remodeled to restore the bone's strength and shape.

5. Can cartilage be regenerated or repaired?

Ans. Cartilage has limited regenerative capacity compared to other tissues. Injuries or damage to cartilage can be challenging to heal naturally because cartilage lacks its own blood supply. However, there are certain treatment options available for cartilage repair, such as microfracture surgery, where small holes are created to stimulate the growth of new cartilage. Other techniques, like autologous chondrocyte implantation, involve the transplantation of healthy cartilage cells to the damaged area. Research is ongoing to develop more effective methods for cartilage regeneration.

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