The pectoralis minor spans some of the space.
The rectus abdominus is a long, straplike muscle that connects the pubic bones to the rib and sternum.
Ribs 1-10 protect the lungs along with the sternum and the clavical.
No, not all ribs directly articulate with the sternum. Ribs 1 to 7 directly articulate with the sternum, while ribs 8 to 10 indirectly articulate with the sternum through the costal cartilages of the ribs above them. Ribs 11 and 12 are floating ribs that do not articulate with the sternum at all.
The ribs and sternum are best classified as the rib cage. Most of the ribs and sternum consist of bone.
The three types of ribs are true ribs, false ribs, and floating ribs. True ribs (ribs 1-7) are directly attached to the sternum via costal cartilage. False ribs (ribs 8-10) are indirectly connected to the sternum through the cartilage of the ribs above them, while floating ribs (ribs 11-12) do not attach to the sternum at all, ending in the muscle of the abdominal wall. This anatomical arrangement provides structural support and flexibility to the thoracic cavity.
There are typically seven pairs of ribs that directly connect to the sternum, forming the rib cage. These are known as true ribs.
the second pair of ribs
Ribs 11 and 12 do not attach anteriorly to the sternum.
Ribs are classified according to their attachment to the sternum. The first seven pairs of ribs attach directly to the sternum and are called true ribs. Ribs 8-10 have cartilage that attaches to the cartilage of the seventh rib and are called false ribs. The eleventh and twelfth ribs do not attach to the sternum and are called floating ribs.
Ribs 8 to 10 are attached individually to the sternum by way of the costal cartilage. Ribs 1 to 7 are attached directly to the sternum, while ribs 11 and 12 are floating ribs without any attachment to the sternum.
Only the true ribs are attached to the sternum the false ribs (3) and the floating ribs (2) are not directly attached. The flalse ribs are attached indirectly via cartillage and the floating ribs are not attached at all.
Costal cartilage connects the ribs to the sternum.