Completar frases The 1st , 6th, and 12th ribs. Versión en línea In the game you will define the differences between the 1st, 6th, and 12th rib. por Chastity Grimes 1 posterior short neck verebrae 8 curved coastal short tubercle thoracic twelve flat 6th neurovascular slender grove there are part of each rib , each which articulate on the . The 1st rib is broad flattened and marked . It has for different parts , the head articular facet of the head , , tubercle . The head is small and rounded , it is located aspect of the rib . The rib is atypical rib it has a head neck and shaft . the 6th rib has parts to it . The shaft is thin and curved . As well as the is on the lower part of the aft is accommodates the intercostal bundle . The 12 rib in a bone . it has 3 different parts it is made up of . The shaft is very short without a .