"Variant anatomy "
"The broader superior surface of the quadrilateral manubrium has a midline indentation, the suprasternal notch. The manubrium is connected to the deep cervical fascia, three neck muscles and is notched at the sternoclavicular and first costochondral joints. See manubrium for more detail."
"The body is a flat rectangular bone approximately 20 cm long, 3-4 cm wide and 1 cm thick that has concavities (facets) on its lateral border at the rib articulations. See sternal body for more detail."
"The xiphoid process is a thin bony projection inferiorly. See xiphoid process for more detail."
Expected headings
"Variant anatomy "
"Ossification"
"The sternum, ribs and scapulae are flat bones which protect the thoracic organs and provide stability while allowing for respiratory and upper limb motion through articulations and muscle attachments."
"The sternum comprises three bones which are firmly connected by symphyses. The manubriosternal joint is fibrocartilaginous; the xiphoid process is attached by a synchondrosis."