How is the matrix of bone different from that in other connective tissues?
81371
A bone matrix is made up of calcium phosphate salts while most other tissue matrices are made up of water and electrolites.
189265
At birth the human body has about 350 bones, but by the time adulthood rolls around, some of our bones have fused together to give us a total of 206 bones in our body!\n\nHere is the breakdown:\n\nThe adult skeleton consists of 206 bones . . .\n\n- 28 skull bones (8 cranial, 14 facial, and 6 ear bones);\n\n- the horseshoe-shaped hyoid bone of the neck;\n\n- 26 vertebrae (7 cervical or neck, 12 thorax, 5 lumbar or loins, the sacrum which is five fused vertebrae, and the coccyx, our vestigial tail, which is four fused vertebrae);\n\n- 24 ribs plus the sternum or breastbone; the shoulder girdle (2 clavicles, the most frequently fractured bone in the body, and 2 scapulae);\n\n- the pelvic girdle (2 fused bones);\n\n- 30 bones in our arms and legs (a total of 120);\n\n- There are also a few partial bones, ranging from 8-18 in number, which are related to joints.
670448
First, the bones are the structural support for muscles, nerves, blood and lymph circulation systems, as well has holding the various organs and glands in place.\n\nMay I recommend a few?
982526
That depends upon the body.  Not everyone weighs the same.  Skeletons also vary.  Then there is the question, "Were you referring to human bodies"?  Different animals have differing bone structures.  Most birds have very light skeletons by comparison to other animals.
341255
Tendons join muscle to bone. They have tensile strenght, but very little elasticity.
897866
yes, according to my anatomy teacher, the osteocytes have the same elements as any regular cell. nucleus, ribosomes, etc.
162076
there are typically 206 named bones in an adult,but varies from person to person,it is higher in new borns and increases in childhood due to cartilages turning to bones,then bone fusion leads to adult number of bones.
95058
Cells have what is called an extracellular matrix, which includes proteins that anchor everything togteher (things like collagen and elastin, etc.).
932129
A joint (articulation) is the location at which two bones make contact (articulate). Joints are constructed to both allow movement and provide mechanical support.\n\nStructurally, joints are classified as:\n\nfibrous - bones are connected by collagen. \ncartilaginous - bones are connected by cartilage. \nsynovial - there is a space (synovial cavity) between the articulating bones. \n\nFibrous joints\nIn fibrous joints bones are joined by tight and inflexible layers of dense connective tissue, consisting mainly of collagen fibers. In adults, these are not designed to allow any movement; however, in children, fibrous joints have not solidified and are movable. Examples of fibrous joints are:\n\nCranial sutures, joining the bones of the cranium. \nGomphoses, the joints between the roots of the teeth and their sockets (or alveoli)and in maxilla and mandible.g \n\nCartilaginous joints\nIn cartilaginous joints (also known as synchondroses) bones are connected entirely by cartilage. In comparison to synovial joints, cartilaginous joints allow only slight movement. Examples of cartilaginous joints are the pubic symphysis, the joints between the ribs and the sternum, and the cartilage connecting the growth regions of immature long bones. Another example is in the spinal column - the cartilaginous region between adjacent vertebrae. and are made of cartilage.\n\n\nSynovial joints\nSee synovial joint for details. (The term "Synovial joint" and "Diarthrosis joint" are often used interchangeably, although the first term refers to the structure and the second one to the function.)\n\nFunctional classification\n\nFunctionally, they can be classified as:\n\nsynarthrosis - permit no movement. \namphiarthrosis - permit little movement. \ndiarthrosis - permit a variety of movements (e.g. flexion, adduction, pronation). Only synovial joints are diarthrodial. \n\nSynarthrosis joints\nSynarthroses are joints with very little (if any) mobility. They can be categorised by how the two bones are joined together:\n\nSyndesmoses are joints where the two bones are joined by one or more ligaments. \nSynchondroses are joints where the two bones are joined by a piece of cartilage. \nSynostoses are the fusion of two bones, to the point that they are practically one bone. In humans, the plates of the cranium, initially separate, fuse together as the child approaches adulthood. Children whose craniums fuse too early may suffer deformities and brain damage, as the skull does not expand properly to accommodate the growing brain - a condition known as craniostenosis. \nAmphiarthroses are slightly moveable joints where the two bone surfaces at the joint - both covered in hyaline cartilage - are joined by strands of fibrocartilage. \n\nAmphiarthrosis joints\nMost amphiarthrosis joints are cartilaginou
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At birth the human body has about 350 bones, but by the time adulthood rolls around, some of our bones have fused together to give us a total of 206 bones in our body!\n\nHere is the breakdown:\n\nThe adult skeleton consists of 206 bones . . . \n\n- 28 skull bones (8 cranial, 14 facial, and 6 ear bones); \n\n- the horseshoe-shaped hyoid bone of the neck; \n\n- 26 vertebrae (7 cervical or neck, 12 thorax, 5 lumbar or loins, the sacrum which is five fused vertebrae, and the coccyx, our vestigial tail, which is four fused vertebrae);\n\n- 24 ribs plus the sternum or breastbone; the shoulder girdle (2 clavicles, the most frequently fractured bone in the body, and 2 scapulae); \n\n- the pelvic girdle (2 fused bones); \n\n- 30 bones in our arms and legs (a total of 120); \n\n- There are also a few partial bones, ranging from 8-18 in number, which are related to joints.
1140719
The skeletal system supports the whole body, including the bones. In addition to holding things up, and being propelled by the muscular system, Bones create blood in the marrow.
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Biochemistry (bones are biological) and chemistry (reaction between the molecules that make up the bone, and the vinegar and baking soda).\n\nCellular and molecular biology and microbiology don't really count, since it's you're not trying to examine how it affects individual cells.
951836
All cells have cell membranes.  They both have DNA and a lot of other stuff common to all life forms.  The main difference is that animal cells don't have cell walls but plant cells do.  If I were God, I would make animal bone cells have cell walls.  That would be cool.
1151599
The skeletal system is the base for all of the other systems, in your question, muscles are directly attached to bone by tendons and ligaments.  The nerves then run around and through our muscles so when a thought to move is made then the nerve is sent from the brain to the nerves then they send it to the muscle creating a movement.
250410
No part of the bone remains the same size always. The bony collar (the compact bone of the shaft surrounding the medullar cavity) experiences appositional growth right up until your late teens. Osteoblasts add; osteoclasts detract, which is why to have strong, resilient bones, one must put in more than is taken away (namely, calcium salts).
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It is the other way around. Calcium atoms ARE present in bones.
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The spongy part inside of a bone is marrow. This substance creates new blood cells as the old blood cells die.