ipl-logo

Bone Structure

736 Words3 Pages

Bone is a complex, highly organized and specialized connective tissue. It is characterized physically by the fact that it is a tissue that is hard, rigid and strong, and microscopically by the presence of relatively few cells and much intercellular substance formed of collagen fibers and stiffening substances [1,2]. Bone consists of 65% mineral, 35% organic matrix, cells, and water. The bone mineral is in the form of small crystals in the shape of needles, plates, and rods located within and between collagen fibers. The mineral is largely impure hydroxyapatite, Ca10 (PO4)6 (OH)2, containing constituents such as carbonate, citrate, magnesium, fluoride, and strontium incorporated into the crystal lattice or absorbed onto the crystal surface. …show more content…

The rate of turnover of the skeleton approaches 100% per year in the first year of life, declining to about 10% per year in late childhood, and then usually continues at approximately this rate or more slowly throughout life. Much of the turnover of bone during growth results from bone-modeling, but presumably at least some remodeling also occurs. After the completion of skeletal growth, the turnover of bone results primarily fromremodeling. Modeling and remodeling result from coordinated resorption and formation of bone over extensive regions of the tissue, over prolonged periods of …show more content…

The pathways by which mechanical forces areexpressed in osteoclast and osteoblast activity is currently one of the main unresolvedissues in bone mechanobiology. The current concept is that the bone architecture iscontrolled by a local regulatory mechanism. This idea originates from Roux (1881), whoproposed that bone remodeling is a self-organizing process. Frost captured these conceptsin his ‘mechanostat’ theory (Frost, 1964, 1987). It assumes that local strains regulatebone mass. If strain levels exceed a so-called mechanical ‘set-point’, new bone is formed.If strain levels are below this set-point, bone is removed. It is a qualitative theory, but itforms the theoretical basis for several mathematical and computational theories that weredeveloped to study bone

Show More
Related
1789 Words | 8 Pages

File one Summary: Skeletal muscles are made out of striated subunits called sarcomeres, which are made out of the myofilaments actin and myosin. Skeletal muscles contain myofibrils. Every myofibril is striated with dull and light bands. I bands contain just thin fibers, made fundamentally out of actin.

Read More
319 Words | 2 Pages

Bone Detective Formal Report Sophia Dominguez Introduction:The skeletal remains of the victim was found in a park lying next to another set of remains. Only the skull, pelvis, humerus, and tibia were found. Summary of findings: In determining the sex of the victim, the pelvis was very circular and wide. Also, the sub-pubic angle was greater than 90 degrees, thus indicating she was a female.

Read More
222 Words | 1 Pages

• Hip bone • Sternum • Skull • Ribs • Vertebrae • Scapula • The ends of long bones Red marrow is so valuable because it is where blood stem cells are found. Bone broth rich in red marrow provides those stem cell factors which ultimately build your body’s strength and support your immune function A dash of apple cider. ; Bone is an excellent source of calcium and phosphorus, and to a lesser degree, magnesium, sodium, potassium, sulfate and fluoride In the digestion process, hydrochloric acid helps to break down food in the stomach but is also necessary to extract elemental minerals from food.

Read More
1341 Words | 6 Pages

The television show Bones provides a unique insight into the criminal justice system through gender, race and class lenses. Bones is a television program that investigates crimes through the use of forensics. In most episodes, there are victims and perpetrators of crime as well as investigators to solve the crime. This report will discuss how gender, race and class figure into the portrayals of victimization, portrayals of perpetration of crime, and the representation and roles of the investigators on prime-time crime-fighting television.

Read More
777 Words | 4 Pages

Bones in the novel show up throughout the novel differently, but memory is most linked with bones. This is based on my interpretation of the novel, but my classmates tend to have different views than me, so I’m interested in seeing what they think of

Read More
853 Words | 4 Pages

As my team and I discovered a new fossil in our excavation project, the unknown site yielded the skull of a mysterious specimen. Our goal as reputable anthropologist was to analyze the specimen to the best of our ability so our team can provide the most probable and reliable taxonomic identification. In order for us to effectively interpret the results our experiment yielded, we needed to review our knowledge in human evolution. The field that uncovers the mystery of the evolution of humans is paleoanthropology, the study of human evolution through the fossil record.

Read More
1345 Words | 6 Pages

Its composition consists of Half Dome Granodiorite, which consists of quartz, feldspar, hornblende, and

Read More
591 Words | 3 Pages

Paget Disease of Bone Paget disease is a condition that makes the bones grow faster than normal. This leads to bones that are larger and weaker than normal. Healthy bones rebuild themselves by destroying old bone and replacing it with new bone tissue. This process usually slows down as a person gets older.

Read More
409 Words | 2 Pages

When a bone is damaged in people with Osteogenesis imperfecta (OI), the bones tend to heal at a normal rate, but they may be deformed during the healing process. It is also possible in severe cases, that during the birthing process that the bones may break and cause death. The majority of fractures start during infancy and early childhood and less often when the child goes thru puberty. There are many symptoms present

Read More
644 Words | 3 Pages

Evolution is supported by the fossil record, and how scientists can see similarities in DNA. To see how organisms are related,scientists can see that they have homologous structures and scientists can look in the fossil record and see common ancestors. When scientists look into the fossil record, they can see how organisms may have evolved. They look further back and see common ancestors. scientists can look at DNA and see how things are similar in other organisms, they can see that things may have had common ancestors and evolved from the same thing.

Read More
1175 Words | 5 Pages

The FGFR3 protein spans across the cell membrane resulting in one end inside the cell and the other outside the cell allowing the protein to interact with growth factors outside the cell and receive signals for growth and development. The FGFR3 protein in the bone cells help control bone growth through a process previously mentioned called ossification, where cartilage is transformed into bone using calcium. When growth factors bind to the FGFR3, the protein is activated and FGFR3 is able to regulate ossification. When the Gly380Arg mutation occurs, it results in the FGFR3 protein being absent or damaged therefore preventing it from interacting with external growth factors causing the loss of control of ossification. This causes problems during bone development where cartilage fails to turn into bone.

Read More
233 Words | 1 Pages

Bones are a vital part of the human body. We need bones for support, protection and movement. Healthy bones contribute a lot to the overall health of an individual. Bones get diseases and infections like any other parts of the body and one of those diseases is Osteoporosis.

Read More
1509 Words | 7 Pages

Studies from the early 1990s demonstrated that Bone morphogenic proteins induce the generation of dentin in animal models. However, the ability to induce the formation of dentin is not only limited to Bone morphogenic proteins. But Dentin matrix protein has also been shown to nucleate and form the apatite crystals and also to induce dentin

Read More
1583 Words | 7 Pages

INTRODUCTION Limited financial resources are available to serve the entire population needs for biomaterials to increase mobility, decrease pain and overall improve life. Their ability to maintain their physical health show that an individual’s general health level. Therefore, I believe that it is important for Bioengineers to continue research and development to find longer lasting biomaterials, improve procedures and techniques to lead to more cost effective solutions. Over 300 years ago, scientists and doctors realized they could use cells as a means to improve tissue damage [4]. This was shown in the first attempt of a bone graft in 1668 by Job-Van Meek’ren, the Dutch surgeon [4].

Read More
1629 Words | 7 Pages

The formula of hydroxyapatite is Ca5(PO4)3OH but usually written Ca10(PO4)6(OH)2 to denote that the crystal unit cell comprises two entities. The calcium hydroxyapatite use as bone substitute materials because of their chemical similarity to the component of bones and teeth of mammalian. Calsium hydroxyapatite also used as fillers and coatings for repairing of large osseous defects

Read More

More about Bone Structure

Open Document