How far behind should you stay from another vehicle in traffic?   The universally accepted answer to this is: 2 seconds in normal driving conditions (good weather & dry roads) and 5 seconds in inclement weather (ie: snow and icy â¦roads).
A typical human rib cage consists of 24 ribs, the sternum (with xiphoid process), costal cartilages, and the 12 thoracic vertebrae. Together with the skin and associated fascia and muscles, the rib cage makes up the thoracic wall and provides attachments for the muscles of the neck, thorax, upper abdomen, and back.
Vertebral rib: One of the last two ribs. A rib is said to be vertebral if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each pair of ribs is attached to the building blocks of the spine (the vertebrae) in the back. The 12 pairs of ribs consist of: 1  True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true (or sternal) ribs.