d. Thoracic cage
No, Cranium is around the Brain, and the sternum is the middle of your chest cavity.
The axial skeleton contains the brain, the spinal column and ribs. The appendicular skeleton contains all other bones.
The ribs, sternum and thoracic vertebrae make up the ribcage.
thoracic cage
Yes, they do.
7 with sternum
sternum and ribs
sternum
The ribs, the thoracic vertebrae and the sternum, some would also consider the clavicle part of the thoracic cage.
Skull;(cranium and mandible), vertebrae, sternum
: Vertebrae are posterior (or dorsal) to the sternum and medial to the kidneys.
Your thoracic cavity starts from the upper margin of the thoracic vertebra to upper margin of the manubrium of the sternum. There is your diaphragm on the lower side.