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Which of the following is a protein secreted by osteoblasts during bone deposition A calcium B vitamin C C phosphorus D collagen E none of the above?
A protein secreted by osteoblasts during bone deposition is collagen. The collagen is put down in layers parallel to the long axis of the bone alternating with layers at right angles to the long axis of the bone, kind of in a cross-hatching pattern.
What cellular activity causes increase in bone mass?
osteoblasts secrete matrix; bone deposition
Which cells secrete collagen and stimulate calcium phosphate deposition?
Osteoblasts are responsible for secreting collagen and stimulating calcium phosphate deposition during the process of bone formation.
What decreases bone deposition by osteoblasts?
Bone deposition by osteoblasts can be decreased by several factors, including hormonal changes such as decreased levels of estrogen and testosterone, which are crucial for bone health. Additionally, a deficiency in key nutrients like calcium and vitamin D can impair the function of osteoblasts. Certain medical conditions, such as osteoporosis, as well as prolonged inactivity or immobility, can also lead to reduced osteoblast activity and bone deposition.
Who exemplifies a positive feedback process happening in bone mineral deposition?
Osteoblasts exemplify a positive feedback process in bone mineral deposition. When new bone is formed by osteoblasts, they release proteins that stimulate further osteoblast activity and mineral deposition. This creates a cycle where bone formation encourages more bone formation.
Do osteocytes produce collagen fibers that span a break?
Osteocytes are bone cells responsible for maintaining bone tissue, but they do not directly produce collagen fibers. Collagen fibers are mainly secreted by osteoblasts, which are bone-forming cells. Osteocytes play a role in regulating the activity of osteoblasts and osteoclasts.
What gland and hormone stimulates the deposition of calcium into the bone?
The parathyroid hormone stimulates the absorption of calcium from the bone.
The term osteoid refers to the organic part of the matrix of compact bones?
Yes. Osteoid is the organic bone matrix secreted by osteoblasts.
The bone-forming cells?
The bone-forming cells are called osteoblasts. They are responsible for the production and mineralization of bone tissue. Osteoblasts play a critical role in the formation of new bone during bone growth, remodeling, and repair.
What cell is involved with bone deposition?
Osteoblasts are the cells primarily involved in bone deposition. They synthesize and secrete the bone matrix, which includes collagen and other proteins, and facilitate the mineralization process by promoting the deposition of calcium phosphate. Once they become trapped in the matrix they produce, they differentiate into osteocytes, which help maintain bone tissue.
What kind of cell builds bone?
Osteoclasts (Osteo - bone, clast - make or create)
What are osteoblasts and where are they found?
Osteoblasts are needed to create bone. Osteoclasts destroy bone.
