4/9/2023 0 Comments Rib cage diagramsThis is why its radius curve is very expressive. The first rib is short, wide, and flat without any curve on its edge and axis. Due to the curve on the longitudinal axis, the interior plate on the back of the rib is pointed upwards, while on the front end it is pointed downwards. This is particularly evident in ribs that are in the middle. Due to the edge curve, the head of the rib is in a higher position than its front end. This curve increases according to the rib’s number, i.e. Ribs also are different in the curve: curve by radius, curve by the edge (horizontal plane), and according to the longitudinal axis.Ī radius curve is higher at the beginning of the rib and smaller at the end. The rib’s length increases from 1st to 7-8th and after this, it decreases till the 12th. The front edge ends with an ellipsoidal shape on which the rib cartilage connects. This furrow isn’t present in the 11th and 12th ribs. On the interior wall of the rib body is a channel, sulcus costae, with blood vessels and nerves. The upper edge is round and the lower sharp. With the upper ribs, closer to the nodule (and in the case of lower ribs, a little further from the nodule) they are curved and have a rough surface that connects them with muscles, angulus costae.Ī rib has a flat body, as you can see from the picture of the anatomy of the human rib cage. The exceptions are the 11th and 12th ribs that don’t have this surface, which enables them much higher mobility. The neck ends with a nodule, tuberculum costae.On the bottom side of the nodule is the joint surface for connection with the transverse end of the same numeral vertebra, facies articularistuberculi costae. The neck of the first 3-4 ribs is rounded while others have the already mentioned ridge, crista colli costae. The head of the 1st, 11th, and 12th ribs connect only with the same numeral vertebra. The ridge itself is connected to the intervertebral plate. The upper part is joined with the same numeral chest vertebra and the lower one with the first lower vertebra. The head of every rib (except in the case of the 1st, 11th, and 12th) includes an upper and lower part that is divided by the ridge, crista capitis costae. The false ribs consist of only 3 rib pairs, and similarly to the true ribs, are also numerically called theįrom the anatomy of the human rib cage, one can tell that the human Ribs bones have several parts: – 2nd ribsģrd ribs Anatomy of the human ribs – 3rd ribsįalse ribs(costae spuriae, VIII-XII). These true ribs are also numerically known as the:Ģnd ribs Anatomy of the human ribs. They are also referred to as costae verae (sometimes vertebrosternal) and include ribs one to seven (I-VII). The true ribs consist of 7 ribs, each on the left and right sides of the chest wall. “Although many believe that the human ribs number is grouped into two categories, there are in ONLY two types of ribs according to the medical community, true ribs and false ribs” True ribs There are three basic types of ribs according to the anatomy of the human ribs and every 12 pairs of ribs are marked with Roman numerals I-XII or in Arabic numerals 1-12. These ribs are parted in 12 pairs (each on the left and right side of the chest wall), with the sternum, metasternum(the xiphoid process), and the costal cartilages all situated at the anterior (frontal-side) of the chest wall, followed by the thoracic vertebrae on the posterior of the chest wall.Īll 24 ribs are connected at the posterior of the chest wall, each connecting to the building blocks of the spine or vertebrae. The anatomy of the human ribs is made up of 24 ribs. The Anatomy of the Human Ribs (costae) are one of the integral parts of the chest wall they make up the lateral part of our body, its anterior and posterior wall and they entirely build the lateral parts of the chest wall.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |