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The male pelvis, formed by left and right hip bones, sacrum, and coccyx. The female pelvis is wider than the male pelvis to accommodate childbirth. At about the age of puberty, ossification takes place in each of the remaining portions, and they join with the rest of the bone between the twentieth and twenty-fifth years.
Beyond age 40, individuals may become aware of their partially ossified xiphoid process and potentially misinterpret it as an abnormality. [ 2 ] In the context of pericardiocentesis , a medical procedure involving the aspiration of fluid from the pericardium of the heart, the xiphoid process often serves as an anatomical landmark for guiding ...
Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by cells named osteoblasts. It is synonymous with bone tissue formation. [ 1 ]
The sacrum (pl.: sacra or sacrums [1]), in human anatomy, is a large, triangular bone at the base of the spine that forms by the fusing of the sacral vertebrae (S1–S5) between ages 18 and 30. [ 2 ] The sacrum situates at the upper, back part of the pelvic cavity , between the two wings of the pelvis .
It runs from the sacrum (the lower transverse sacral tubercles, the inferior margins sacrum and the upper coccyx [1]) to the tuberosity of the ischium. It is a remnant of part of biceps femoris muscle. The sacrotuberous ligament is attached by its broad base to the posterior superior iliac spine, the posterior sacroiliac ligaments (with which ...
The two most common techniques for estimating bone age are based on a posterior-anterior x-ray of a patient's left hand, fingers, and wrist. [5] [17] The reason for imaging only the left hand and wrist are that a hand is easily x-rayed with minimal radiation [18] and shows many bones in a single view. [19]
These narrow lines are what characterises one growth year, therefore make it suitable to determine the age of the specimen. [2] Not all bones grow at the same rate and the individual growth rate of a bone changes over a lifetime, [ 1 ] therefore periodic growth marks can take irregular patterns.
To avoid biased examinations in skeletal age estimation, at least more than one indicators is required. [17] In order to investigate if there is an evidence of growth and development on the skeletons, the evolving pattern and fusion of ossification centers can be used to determine that the skeletons are developed. Thus, this means the skeletons ...