Temporal bone

The annulus is the outer portion of the disc that surrounds the nucleus. It is made up of 15 to 25 collagen sheets which are called the 'lamellae'. The lamellae are 'glued' together with a proteoglycans. These sheets encircle the disc and, in concert with the nucleus, give the disc tremendous axial load strength. The posterior portion of the annulus if further strengthened by the 'posterior longitudinal ligament'. This structure is the final barrier between the disc and the delicate spinal…

1-3 months are used, depending on the course) and the rest in the neck is advisable. In exceptional cases where the spinal cord decompression from the front or by laminectomy may be required and thereafter it may be advisable to merge narrowed by bone graft surgery the segments concerned spine. physiotherapy Once the collar is diagnosed the problem, the…

anatomical components. The skull is the structure which main function is to protect the brain; it is made up of the bones of the cranium and the face. Muscles and skin cover these bones, and this cover is called the scalp. Fourteen bones in the anterior region of the skull form the face. These bones provide structure for the face and cavities for nose, eyes and mouth. Also, these bones allow the mandible to move. The poromandibular joint allows the person to open and close the mouth and provides…

their lives. My life has changed in the past two years and I have been struggling with a knee problem called Osteochondritis Dissecans, or OCD for short. Osteochondritis Dissecans is a condition where the bone underneath your cartilage dies due to a lack of blood supply. This can cause the bone to crack and loosen and sometimes even completely disconnect from the joint. Not only has OCD taken me out of all my extracurricular activities such as, hockey and soccer, it has also taken a huge toll on…

indication of sex is not always apparent in the archaeological record and we have to infer based on overall size in comparison to modern population (Reitz and Wing, 1999). One exception is in the case of female birds which can be recognized by medullary bone, a calcium deposit associated with egg laying (Reitz and Wing, 1999). Aging: Age at death will be determine by the degree of closure of the suture of the skulls, fusion/ ossification between limb shaft and epiphysis, teeth…

I chose to write about melorheostosis. This disorder usually affects the arms and legs and is normally only on one side of the body. The common symptom of melorheostosis is irregular bone growth such as thickening and widening of the bones. Since it only effects on side of the body, this causes the limbs to be uneven in length. Other symptoms can include pain, swelling, stiffness, unable to use full range of motion, swelling of the joints and abnormal muscles. The exact cause of melorheostosis…

blood cells contain oxygen which is converted into ATP during cellular respiration. The ATP is needed to perform daily tasks like walking. The skeletal system supports the striated muscle which allows movement to occur. The striated muscle connects the bone and muscle together. The skeletal system relies on the muscular system for calculated movement. For example, the axial skeleton needs muscle to allow movement. 2. Digestive System and Excretory System The digestive system depends on the…

and smooth. Skeletal muscle is the most common of the three, since it’s connected to bone all throughout our bodies. It’s also often considered to be under voluntary control, through nerve signals. "(Skeletal Muscle | Anatomy). A group of muscle fascicles, or muscle cells, are surrounded by a type of connective tissue called epimysium. The muscles are attached to tendons, and those tendons are then attached to bone. Within muscle fascicles, there are groups of muscle fibers. The type of…

Osteosarcoma (osteogenic sarcoma) is very rare bone cancer that begins in the cells that form bones. It most often occurs in the long bones that are in arms and legs. The bones that are infected are immature and have a weaker bone matrix than normal bones, and tumors grow on the infected area. There are 800 new U.S. cases per year, 400 of which are diagnosed in teenagers. The main symptoms of osteosarcoma include bone pain in a certain area, swelling, bone tissue formation, and limping.…

Osteoarthritis Osteoarthritis is a degenerative condition of the joint cartilage, the smooth cushion of gristle found in all of our normal joints (Porter, 277). Inflammation does not occur but bare bone ends begin to rub against each other. The British call it osteoarthrosis, because of the fact it is not an inflammatory condition. The most common type of arthritis next to rheumatoid arthritis. This arthritis tends to occur in the hand joints, spine, hips, knees, and great toes. The lifetime…