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§The initial stage in bone production is the secretion of collagen molecules and ground substance by osteoblasts.
§The collagen monomers polymerize rapidly to form collagen fibers.
§The resultant tissue becomes osteoid
§As the osteoid is formed, some of the osteoblasts become entrapped in the osteoid and become quiescent osteocytes.
§Within a few days after the osteoid is formed, calcium salts begin to precipitate on the surfaces of the collagen fibers.
§The precipitates first appear at intervals along each collagen fiber, forming minute nidi that rapidly multiply and grow over a period of days and weeks into the finished product, hydroxyapatite crystals.
hope thats good enough :)
What else can I help you with?
What three steps are involved in clastic rock formation?
Weathering and erosion break down pre-existing rocks into sediments. Transportation of these sediments by water, wind, or ice to a new location. Deposition and compaction of the sediments to form layers, followed by cementation to create a solid clastic rock.
The dropping of sediments by any agent of erosion is called?
deposition
Is it erosion or deposition when materials drop out of wind or water?
Deposition. Erosion is the process of wearing away or carrying away materials, while deposition is the process of dropping or depositing those materials in a new location.
Why there is low deposition rate in sputter deposition?
Low deposition rate in sputter deposition can be attributed to factors such as low sputter yield of the target material, insufficient power or pressure to sustain sputtering, inefficient target utilization, or poor target-substrate geometry leading to inefficient material transfer. Increasing any of these factors can help improve the deposition rate in sputter deposition.
Is a loess a result of deposition or erosion?
Loess is a result of deposition. It is a clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust.
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 is the deposition of calcium salts in bone tissues?
ossification.
What cellular activity causes increase in bone mass?
osteoblasts secrete matrix; 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.
What is peak bone mass?
Peak bone mass occurs at ~30 years of age. Afterwards, bone loss starts to outpace bone deposition.
What is the condition in which bone resorption outpaces bone deposition leading to the bone becoming more porous and brittle?
Osteoporosis is the condition in which bone resorption outpaces bone deposition, causing bones to become porous and brittle. This can increase the risk of fractures and other bone-related issues.
How is delta formed-all the steps?
Deltas are created by deposition.
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.
What do you call the deposition of calcium salts into bone tissue?
The deposition of calcium salts into bone tissue is called mineralization or calcification. This process helps to strengthen and harden the bones, making them more rigid and able to support the body.
What are 4 steps for a sedmentary rock to form?
Deposition, Compaction, Cementation and Lithification
What is bone deposition?
it is the formation of bones. This is the principal role of calcitriol. It requires both calcium and phosphate.
Which gland and hormone stimulate the deposition of calcium in the bone?
The gland responsible for stimulating the deposition of calcium in the bone is the thyroid gland, which releases the hormone calcitonin. Calcitonin helps lower blood calcium levels by promoting the uptake of calcium into the bones and inhibiting osteoclast activity, which breaks down bone. This process is essential for maintaining calcium homeostasis in the body and ensuring proper bone health.
