It is situated around the windpipe. behind the upper part of the breastbone.

The chest is a chamber with bony walls. the ribs connecting in front with the breastbone. and behind with the spine.

The first seven pairs. counting from the neck. are called the true ribs. and are joined by their own special cartilages directly to the breastbone.

The slight fracture in the breastbone had repaired itself by one of Nature`s magic processes.

The upper cavity. or chest. is a bony enclosure formed by the breastbone. the ribs. and the spine.