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The bone matrix can store calcium and is involved in calcium metabolism, and bone marrow can store iron in ferritin and is involved in iron metabolism. However, bones are not entirely made of calcium, but a mixture of chondroitin sulfate and hydroxyapatite, the latter making up 70% of a bone. Hydroxyapatite is in turn composed of 39.8% of ...
The number of bones in the human skeletal system is a controversial topic. Humans are born with over 300 bones; however, many bones fuse together between birth and maturity. As a result, an average adult skeleton consists of 206 bones. The number of bones varies according to the method used to derive the count.
Bones protect the various other organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility. Bones come in a variety of shapes and sizes and have complex internal and external structures. [2] They are lightweight yet strong and hard and serve multiple functions.
The Magazine of Fantasy and Science Fiction reviewer Charles de Lint declared Bag of Bones to be "a powerful, moving novel." [10] Elizabeth Hand praised it lavishly: "What is extraordinary here is how good the writing is. ... The characterizations are plummy, the dialogue sharp, and even the ghosts play second fiddle to Mike Noonan and his ...
A Brief Biology Breakdown. Here’s what scientists do know: The ovaries are oblong glands each about the size of a kiwi. They’re responsible for the production and secretion of at least two ...
Scientists had come to conclude that while Jaunting is physically carried out almost instantly, to a conscious mind it lasts an indeterminately long amount of time, perhaps millions of years, leading to a conscious person simply being left alone with their thoughts in an endless field of white.
Most other bones (e.g. vertebrae) also have primary ossification centers, and bone is laid down in a similar manner. Secondary centers. The secondary centers generally appear at the epiphysis. Secondary ossification mostly occurs after birth (except for distal femur and proximal tibia which occurs during 9th month of fetal development).
David Boreanaz has a good feeling in his “Bones” about a revival of one of his most beloved projects. Boreanaz, who starred as FBI Special Agent Seeley Booth for all 12 seasons of “Bones ...