[ Synopsis ]

  1. Thorax(Thoracic Cage)의 ant.wall의 mid-line상에 위치
  2. Nexk의 root에서 ant.abdominal wall ( 전복벽 )까지 이르는 flat,elongated bone
  3. 15~20cm manubrium,body,xiphoid proc.로 구성
[ Nomina ]
  1. Manubrium
    1. Upper Border ( Upper Border )
    1. Jugular notch
    2. Clavicular notch
    2. Lat. Border
    1. Articular facet for 1st. costal cart.
    2. Demi-facet for 2nd costal cart.
    3. Lower Border
    1. Manubriosternal joint
    4. Post. Surf.
    1. Sternohyoid m.
    2. Sternothyroid m.
    5. Ant. Surf.
    1. Raised area for tendon of sternocleidomastoid m.(SCM m.)
    2. Concave area for pectoralis major m.

  2. Body
    1. Upper Border
    1. Manubriosternal joint
    2. Sternal angle
    2. Lat. Border
    1. Demi-facet for 2nd & 7th costal cart.
    2. Single facet for 3rd ~ 6th costal cart.
    3. Lower Border
    1. Xiphosternal joint
    4. Post. Surf. : Smooth, Slightly concave
    5. Ant. Surf. : Rough, Pectoralis major m.
    1. Transv. ridge

  3. Xiphoid Proc.
     1. Epigastric fossa
    2. Demi-facet for 7th costal cart.