释义 |
floating rib noun[ C ] anatomy specializeduk /ˌfləʊ.tɪŋ ˈrɪb/ us /ˌfloʊ.t̬ɪŋ ˈrɪb/ any of the two lowest pairs of ribs(= curved bones in the chest) in the human body that are not joined to the sternum(= the long, flat, vertical bone in the centre of the chest) or to the other ribs: Hiccups are contractions of the diaphragm and the muscles between the floating ribs, known as the intercostals. Breathe slowly and deeply, and feel the floating ribs expand and contract as you breathe in and out. The top seven ribs connect to the breast bone, the next three connect to the rib directly above them, and there are two floating ribs. The floating ribs, ribs 11-12, have no anterior attachment with the sternum. Floating ribs are a physical characteristic present in all dogs. SMART Vocabulary: related words and phrases Bone structures acetabular acetabulum acromial acromioclavicular acromion frontal bone glenoid gnathic gynecoid hamate osteophyte osteotomy parietal parietal bone pectoral girdle TMJ trapezoidal triquetrum true rib tubercle
Compare
false rib |