1. The ribs that joins sternum directly by costal cartilage called __________ ribs. (Choice: Floating, False, Vertebrochondral, True) 2. The first cervical vertebra is................ (Choice: Atlas, Atom, Top, Axis)

Answer

1. The correct answer is 'True'. True ribs (ribs 1-7) attach directly to the sternum through their own individual costal cartilages. In contrast, false ribs (8-10) attach indirectly via the cartilage of the rib above them, and floating ribs (11-12) do not attach to the sternum at all. 2. The correct answer is 'Atlas'. The atlas is the first cervical vertebra (C1), which sits just below the skull and supports the head. The axis is the second cervical vertebra (C2), which allows for rotation of the head.