True about sternal angle -
Xiphisternal joint
AtT6.7 level
Articulates with 2nd costal cartilage
None of the above
Ans. is 'c' i.e., Articulates with 2nd costal cartilageo Sternal angle of Louis is man uhriosternal joint (not xiphisternal joint),o It is at the level of T4 -T5 intervertebral space,o 2nd costal cartilage articulates at sternal angle
Osteology of Thorax