Trachea bifurcates at the level of (AIPG 2010)
- The sternal angle is the angle formed by the junction of the manubrium and the body of the sternum in the form of a secondary cartilaginous joint (symphysis).
- This is also called the manubriosternal joint or Angle of Louis.
- The sternal angle is a palpable clinical landmark.
- It marks the approximate level of the 2nd pair of costal cartilages and the level of the intervertebral disc between T4 and T5.
- The Value of this angle is 140 degrees.
- Trachea bifurcates at this level