One reason the skeletal system is important is because the skeletal system creates the connective tissue and tendons that allow the body to move Support, movement, protection, production of blood cells, storage of minerals, and endocrine regulation are all functions of the skeletal system. It is composed of bones, cartilages, ligaments and other tissues that perform these functions.
Answer:
Explanation:
Bone formation, also called ossification, process by which new bone is produced. Ossification begins about the third month of fetal life in humans and is completed by late adolescence. The process takes two general forms, one for compact bone, which makes up roughly 80 percent of the skeleton, and the other for cancellous bone, including parts of the skull, the shoulder blades, and the ends of the long bones.
Bone of the first type begins in the embryonic skeleton with a cartilage model, which is gradually replaced by bone. Specialized connective tissue cells called osteoblasts secrete a matrix material called osteoid, a gelatinous substance made up of collagen, a fibrous protein, and mucopolysaccharide, an organic glue. Soon after the osteoid is laid down, inorganic salts are deposited in it to form the hardened material recognized as mineralized bone. The cartilage cells die out and are replaced by osteoblasts clustered in ossification centres. Bone formation proceeds outward from these centres. This replacement of cartilage by bone is known as endochondral ossification. Most short bones have a single ossification centre near the middle of the bone; long bones of the arms and legs typically have three, one at the centre of the bone and one at each end. Ossification of long bones proceeds until only a thin strip of cartilage remains at either end; this cartilage, called the epiphyseal plate, persists until the bone reaches its full adult length and is then replaced with bone.
The flat bones of the skull are not preformed in cartilage like compact bone but begin as fibrous membranes consisting largely of collagen and blood vessels. Osteoblasts secrete the osteoid into this membrane to form a sponge like network of bony processes called trabeculae. The new bone formation radiates outward from ossification centres in the membrane. This process is called intramembranous ossification. There are several ossification centres in the skull. At birth, bone formation is incomplete, and soft spots can be felt between these centres. The lines where the new bone from adjacent centres meets form cranial sutures visible on the surface of the adult skull.
Both endochondral and intramembranous ossification produce immature bone, which undergoes a process of bone resorption and deposition called bone remodeling to produce mature bone.
Gray is the skin color change would the nurse expect to see if a client with dark skin develops cyanosis.
Cyanosis indicates that there may be decreased oxygen attached to red blood cells in the bloodstream. It might even suggest that their might be a problem with the lungs or the heart.
Cyanosis is caused due to an absolute increase in the deoxygenated hemoglobin. Cyanosis is generally noticed in mouth, around the lips, fingernails and the soles of the feet. Diagnosing and treating the underlying cause is the best way to treat cyanosis.
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The term refers to an exercise program in which a person varies his or her activities to develop balanced, total-body fitness is cross training.
<h3>Why it is important to an excercise?</h3>
Its important to exercise because even though people only exercise to stay fit, its also to stay healthy. Even if you are average weight, you still need to exercise.
Thus, cross training is the term.
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