![]() ![]() ![]() ![]() if fractured and displaced internally = medical emergency (picture)ī) Facial Bones Lacrimal Bone Nasal Bone Zygomatic Bone Maxilla Bone Mandible Bone.overlies one of the major blood vessels.May be fractured in blows to the skull (e.g., in hockey, being checked and hitting the skull on the ice).Divided into two parts: a) Calvaria b) FaceĪ) Calvaria Parietal Bone Frontal Bone Occipital Bone Temporal Bone.Loss of bone mass has been noted in bed-ridden patients, inactive senior citizens, and astronautsĪxial Skeleton Skull Sternum Ribs VertebralColumn Inactivity works in the opposite direction, leading to a decrease in weight and strength.Right forearm of the right-handed tennis player is more dense than her left one from using it more frequently When bones are subjected to regular physical activity and habitual loads, they tend to become denser and more mineralized.Spongy or cancellous bone (high porosity).According to the degree of porosity, bone can be classified into two general categories:.Bone consists of much smaller proportion of water than other body parts.With aging, collagen is lost progressively and bone becomes more brittle. ![]() Gives bone its characteristic flexibility and contributes to its ability to resist pulling and stretching forces.Provide much of the bone’s stiffness and resistance to pressing or squeezing forces.Calcium carbonate and calcium phosphate:.Water Cortical Bone Spongy Bone Medullary (marrow) cavity.Bone is very strong for its relatively light weight. ![]()
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