| What bone cells participate in the function of remodling? | osteoclasts and osteoblasts |
| What cells functions in bone degrading | osteoclasts |
| Describe the function of osteoclasts | osteoclasts degrades the bone cells by secreting concentrated HCl and releasing lysosomal enzymes |
| Where do osteoclasts arise from? | Osteoclasts are derived from hematopoietic stem cells |
| Name the stucture | Bone matrix |
| Name the structure | Osteoclast within Lacuna |
| Function of Osteoblast | the function of osteoblast is opposite to osteoclasts, osteoblasts secretes and forms bone |
| What cell is shown here? | Osteoblasts |
| Give a brief description of bone formation | Bone formation begins as cartilage; the embryonic skeleton consists of cartilage which is then modeled into bone and is constantly growing and remodeling until early adulthood. |
| What slows the release of calcium | Calcitonin slows the release of calcium from the bones |
| What hormone is in charge of releasing bone calcium? | Parathyroid is in charge of releasing bone calcium |
| What hormone encourages bone building? | sex hormones encourage bone building |
| What slows down bone building? | Cortisol slows down bone building |
| How is does the bone undergo remodling | components undergo deposit and removal at periosteal and endosteal surfaces
- we keep the structure of the bone, but replace certain parts |
| Define bone deposition | removal; Bone deposition is accomplished by osteoblasts |
| Define Bone reabsorption | replacing; bone reabsorption is accomplished by osteoclasts |
| How was the new bone formed? | Osteoclast broke down the old bone (the structure remained) and osteoblasts built the new bone |
| What does it mean by active and inactive | During bone remodeling, osteoclast precursors are present but they are inactive, when they are active the osteoclast eat away at the bone. Same goes for the osteoblasts. |
| What is the importance of the ruffled apical membrane | The ruffled apical membrane of the osteoclast cell is important because it allows the cell to prop/position itself upward this keeping it away from the HCl acid that is secreted by the osteoclast to degrade the bone. |
