sternum

sternum/breastbone

anterior midline of thorax

the clavicular notches that articulate with the clavicles and the 1st and 2nd ribs

manubrium

the body is

4 fused bones

the fused bones are

notched on sides where the sternal body articulates with the 2nd-7th ribs

xiphoid process

inferior end of sternum

the xiphoid process exists as a plate of hyaline cartilage when?

as a child

when does the xiphoid process fully ossify?

40 (age)

xiphoid can project __ in some people

dorsally

jugular notch

central indentation in superior border of manubrium

sternal angle

horizontal ridge across anterior surface of sternumt

he sternal body of the sternal angle joins the manubrium and forms a

fibrocartilage hinge joint

the sternal angle is also used as a reference point for the

2nd rib

the sternal angle is an importnat landmark for

thoracic surgery

the 2nd intercostals space is used for

listening to certain heart valves

where the sternal body and the xiphoid process fuse (T9 level)

xiphisternal joint