• Describe ossification in fetal development. During development, the fetal bones are made up of cartilaginous tissue, which is like osseous tissue, except it is more flexible. The absence of calcium salts in its intercellular spaces makes it less dense. As development continues, the process of the depositing of calcium salts into the cartilaginous tissue occurs, and continues throughout their life. Ossification is the gradual replacement of cartilage and its intercellular substance by bone cells that are immature, and calcium deposits.
• What are the roles of Osteoclasts and bone formation? Osteoclasts are large cells that have the function of reabsorbing bony tissue. They digest bone tissue from the inner sides of bones, which enlarges the …show more content…
Osteoblasts are osteocytes that are immature. They produce bony tissue to replace cartilage during ossification. The formation of bone relies on the proper nutrients such as, calcium, phosphorus, as well as proper amounts of, vitamin D. Then osteoblastic activity makes an enzyme that forms calcium phosphate, to give the bone its hard quality.
• How does vitamin D support bone formation? Bones require a proper amount of vitamin D to support bone formation. Vitamin D helps calcium to be absorbed through the lining of the small intestine to the bloodstream. By helping with absorption, then the body is able to form new bone.
• Explain the difference between long bones, short bones, flat bones, and sesamoid bones. Long bones are found in the thigh, lower leg, and upper and lower arm. These bones are broad at the ends where they join at the ends to other bones, and they are very strong. Long bones have large areas for muscles to attach. Short bones are found in the wrist and ankle. They are small and irregular shaped. Flat bones are found covering soft parts of the body. Sesamoid bones are found near joints. They help with the efficiency of muscles that a near a certain joint. The kneecap is the largest example of a sesamoid
• What are the roles of Osteoclasts and bone formation? Osteoclasts are large cells that have the function of reabsorbing bony tissue. They digest bone tissue from the inner sides of bones, which enlarges the …show more content…
Osteoblasts are osteocytes that are immature. They produce bony tissue to replace cartilage during ossification. The formation of bone relies on the proper nutrients such as, calcium, phosphorus, as well as proper amounts of, vitamin D. Then osteoblastic activity makes an enzyme that forms calcium phosphate, to give the bone its hard quality.
• How does vitamin D support bone formation? Bones require a proper amount of vitamin D to support bone formation. Vitamin D helps calcium to be absorbed through the lining of the small intestine to the bloodstream. By helping with absorption, then the body is able to form new bone.
• Explain the difference between long bones, short bones, flat bones, and sesamoid bones. Long bones are found in the thigh, lower leg, and upper and lower arm. These bones are broad at the ends where they join at the ends to other bones, and they are very strong. Long bones have large areas for muscles to attach. Short bones are found in the wrist and ankle. They are small and irregular shaped. Flat bones are found covering soft parts of the body. Sesamoid bones are found near joints. They help with the efficiency of muscles that a near a certain joint. The kneecap is the largest example of a sesamoid