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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.
It is composed of 270 bones at the time of birth, [2] but later decreases to 206: 80 bones in the axial skeleton and 126 bones in the appendicular skeleton. 172 of 206 bones are part of a pair and the remaining 34 are unpaired. [3] Many small accessory bones, such as sesamoid bones, are not included in this.
When the paperback edition of Bag of Bones was published by Pocket Books on June 1, 1999 (ISBN 978-0671024239), it included a new author's note at the end of the book, in which Stephen King describes his initial three-book deal with Scribner (Bag of Bones, On Writing, and a collection of short stories titled One Headlight, which later became ...
“It’s not going to be like we just find one cure,” she says. “It’s going to be lots of different things, and so that’s why we need this army of scientists and clinicians working on ...
Adjusting your daily protein intake can help you reach your weight and fitness goals, but health experts say these are six of the most common mistakes people make that can keep you from maximizing ...
Ur is a science fantasy novella by Stephen King.It is one of King's few short stories that isn't horror. It was written exclusively for the Amazon Kindle platform, and became available for download on February 12, 2009.