One pair of ribs extends from each of the thoracic vertebra of mammals.
there are seven pairs of ribs that are comlpetely attached bonetobone and there are three pairs that are attached wiht cartilage. the last remaining"floating" ribs are not attached. All the ribs are atached to the spine.
The thoracic vertebra
The second pair of ribs or the True ribs
the second pair of ribs
All attach to a vertebra, The upper 6 also attach to the sternum, the bottom 6 just "float".
The ribs are attached at the thoracic region of the spinal column. There are twelve vertebra that make up the thoracic spine. Which can be referred to as T1, the top of the thoracic spine through the bottom of the thoracic spine T12 or T1 - T12. The twelve pair of human ribs are classified as True ribs, False ribs and Floating ribs depending on the ribs pair location on the thoracic spine.
The sternum, ribs 3-6 (3 on each side) and vertebra T 3-6 for a total of 10.
The inferior costal facet and superior costal facet are the points on the thoracic vertebrae at which the ribs articulate.
well, a dog has 13 pair of ribs or 26 ribs overall.
Thoracic Vertebra
The term "Gorilla rib" is used to describe a Lumbar rib. Most humans only have ribs bilaterally attached to their 12 thoracic vertebra but a number of variations exist with cervical ribs, lumbar ribs and even so called sacral ribs. Approximately 8% of humans have a extra rib attached to their lumbar vertebra which also occurs in some types of gorillas