Tyler is admitted to the hospital after an accident. In the hospital, Tyler over hears the doctor telling his mom that although he has a fracture in the axial skeleton, He's lucky because the bone doesn't protect any vital organs essential for survival. Which bone has he fractured? A). Mandible B). Ribs C). Sternum D). Vertebral Column.

A) Mandible

Short Explication :

- i think its A) since its a part of the jaw and it has no vital organs neither does the Vertebral Column but those 2 are quite necessary to continue normal life

A- Mandible : The mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human face. It forms the lower jaw and holds the lower teeth in place. The mandible sits beneath the maxilla.  ( does not contains vital organs )

B- Ribs : In vertebrate anatomy, ribs (Latin: costae) are the long curved bones which form the rib cage, part of the axial skeleton. In most tetrapods, ribs surround the chest, enabling the lungs to expand and thus facilitate breathing by expanding the chest cavity.  ( contains vital organs )

C- Sternum : The sternum or breastbone is a long flat bone located in the central part of the chest. It connects to the ribs via cartilage and forms the front of the rib cage, thus helping to protect the heart, lungs, and major blood vessels from injury.

D- Vertebral Column : The vertebral column is a series of approximately 33 bones called vertebrae, which are separated by inter vertebral discs. The column can be divided into five different regions, with each region characterized by a different vertebral structure.  ( does not contains vital organs )

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.