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我們对国人下位肋骨的构造,观察了200具尸体(成人尸与童尸各100具), 一、左右第10肋为对称游离的(即左右有三对游离肋)有159例,占79.5%,其中成人尸为79例,童尸为80例。在159例中尚可見:在第10对肋对称的游离的情况下,第9肋亦为对称游离的有12例(即左右有四对游离肋),其中成人尸6例,量尸6例;不对称的游离(即一側为三对游离肋,一側为四对游离肋)①右側7例,其中成人尸4例,童尸3例。②左侧1例(童尸)。二、左右第10肋有不对称游离的(即一側为三对游离肋,一側为二对游离肋): 1.左側第10肋为游离的有11例,占5.5%,其中成人尸5例,童尸6例。 2.右側第10肋为游离的有6例,占3%,其中成人尸3例,童尸3例。三、左右第10对肋为附着肋,11、12对肋为对称游离的,仅有24例,占12%,其中成人尸13例,量尸11例。除了对第9、10作了观察以外,我們还对第7、第8肋也作了观察。結果如下: 一、第8肋有与胸骨相結合,成为真肋的。其中并有两侧对称与不对称之分。两侧对称的有7例,占3.5%(男3例,女4例),不对称的15例,占7.5%,其中右側的9例(男5例,女4例),左侧的6例(男2例女4例)。表明具有第8肋真肋的,单侧的較双侧的多,单側的例子中右侧的較多于左侧。二、第7肋有不与胸骨結合,而与第6肋軟骨結合,成为假肋的,这种对称6对真肋的例子,我們共发現了3例,占1.5%,男2例,女1例。
In our study of the structure of the lower ribs of our countrymen, we observed 200 bodies (100 for adult and childbirth). One or both left and right ribs were symmetrically free (ie, there were three pairs of free ribs on the left and right), 159 (79.5%), Among them, 79 were adult and 80 were female. In the 159 cases can be seen: the 10th rib symmetry of the free case, the 9th rib is also free symmetrical in 12 cases (that is, there are four pairs of free ribs), of which 6 were adult and 6 ; Asymmetric free (that is, three pairs of free ribs on one side, four free ribs on one side) ① the right side in 7 cases, of which 4 adult cases, 3 cases of child dead. ② left case (child corpse). Second, about the 10th rib asymmetric free (that is, three pairs of free ribs on one side, two free ribs on one side): 1. The left 10 ribs were free in 11 cases, accounting for 5.5%, of which adult corpse 5 cases, 6 cases of child dead. The right 10 ribs for the free 6 cases, accounting for 3%, of which 3 adult cases, 3 cases of child dead. Third, about the first 10 pairs of ribs attached to the ribs, 11,12 pairs of ribs symmetrical free, only 24 cases, accounting for 12%, of which 13 cases of adult corpses, the amount of dead in 11 cases. In addition to the observations made on pages 9 and 10, we also observed the seventh and eighth ribs. The results are as follows: First, the eighth rib and the sternum combined to become true rib. There are two sides symmetrical and asymmetrical points. Symmetrical on both sides of the 7 cases, accounting for 3.5% (3 males and 4 females), 15 cases of asymmetry, accounting for 7.5%, of which 9 cases of right (5 males and 4 females), the left 6 Example (2 males and 4 females). It is shown that there is more unilateral, more bilateral than the right rib with the eighth rib, more than the left side in the unilateral example. Second, the 7th rib is not combined with the sternum, but with the 6th costal cartilage, a false rib, this symmetrical 6 pairs of true ribs example, we found a total of 3 cases, accounting for 1.5%, 2 males, Female 1 cases.