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These salt crystals form when calcium phosphate and calcium carbonate combine to create hydroxyapatite, which incorporates other inorganic salts like magnesium hydroxide, fluoride, and sulfate as it crystallizes, or calcifies, on the collagen fibers. Learn. To resist these stresses, the material should be as far from the neutral axis as possible. Raeghan_Rudkin.

Bone Cells Composition of bones (continued) Flashcards. Sagittal section through long bone showing the internal structure of the bone. Mechanically, articular cartilage behaves as a linear viscoelastic solid. Composition of Bone.

This section will examine the gross anatomy of bone first and then move on to its histology.The osteocytes are located inside spaces called lacunae (singular = lacuna), found at the borders of adjacent lamellae. Composition of bone  ~1/3 organic ◦ Collagen fiber matrix (~88%) organized around lamellae ◦ Non-collagen (~12%); Glycoproteins, proteoglycans, lipids, etc)  ~1/3 inorganic (mineral) ◦ Mostly dense calcium phosphate in the form of highly insoluble crystals of hydroxyapatite  ~1/3 water  Cells – osteoblasts, osteoclasts, osteocytes, bone lining cells Re-productivity of content are not allowed. As described earlier, canaliculi connect with the canaliculi of other lacunae and eventually with the central canal.

Bone is anisotropic: material properties are different in different directions.

These trabeculae follow the lines of maximum tensile stress, and in general are lighter in structure than those of the compressive system.Cortical bone forms a dense cylinder down the shaft of the bone surrounding the central marrow cavity.
The greatest strength is therefore achieved with the minimum of material.The distribution of the compact bone in the shaft is also due to the requirement to resist the bending moment stresses. It’s a great marketing tool that allows you to share your presentations with marketers, presenters, educationists and others anywhere around the world, and lightning fast. It can be found under the periosteum and in the diaphyses of long bones, where it provides support and protection.

PowerPoint is the world's most popular presentation software which can let you create professional Bone Structure and Skeletal System powerpoint presentation easily and in no time. Created by. This system allows nutrients to be transported to the osteocytes and wastes to be removed from them.The 206 bones that compose the adult skeleton are divided into five categories based on their shapes (Figure 6.6). A hollow cylinder is the most efficient structure, again achieving the greatest strength with the minimum of material.Cancellous (or trabecular) bone is located at the ends of long bones, accounts for roughly 20% of the total mass of the skeleton, and has an open, honeycomb structure. Their shapes and their functions are related such that each categorical shape of bone has a distinct function.The differences between compact and spongy bone are best explored via their histology. The second system forms curved paths from the outer side of the shaft and intersects the first system at right angles. Four types of cells are found within bone tissue: osteoblasts, osteocytes, osteogenic cells, and osteoclasts (Figure 6.9).Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide a surface for inorganic salt crystals to adhere. OSTEOPOROSIS Prepared By Dr. MOHSEN A. GHAFFAR Consultant Orthopaedic Surgery Al Jedaani Group Of Hospitals Bone Composition Inorganic Matter : Mineral forms ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 3f4777-Y2FhZ Later discussions in this chapter will show that bone is also dynamic in that its shape adjusts to accommodate stresses. We only store their respective email addresses for becoming registered member of Slidesfinder.com. Adult long bone. Articular, or hyaline, cartilage forms the bearing surfaces of the movable joints of the body.