True rib

One of the first 7 pairs of ribs. A rib is said to be "true" if it attaches to the sternum (the breast bone). All 12 pairs of ribs attach to the building blocks of the spine (vertebrae) in the back. The 12 pairs of ribs consist of: {{}}True ribs: The first seven ribs attach to the sternum (the breast bone) in the front and are known as true ribs (or sternal ribs). False ribs: The lower five ribs do not directly connect to the sternum and are known as false ribs. The upper three false ribs connect to the costal cartilages of the ribs just above them. The last two false ribs, however, usually have no ventral attachment (no anchor at all in front) and are called floating, fluctuating or vertebral ribs.

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true rib n any of the ribs having costal cartilages connected directly with the sternum and in humans constituting the first seven pairs called also vertebrosternal rib

Medical dictionary. 2011.

Look at other dictionaries:

  • true rib — true′ rib n. anat. one of the upper seven pairs of ribs in humans, attached by cartilage to the sternum Compare floating rib • Etymology: 1735–45 …   From formal English to slang

  • true rib — noun one of the first seven ribs in a human being which attach to the sternum • Hypernyms: ↑rib, ↑costa * * * noun : one of the ribs whose costal cartilages connect directly with the sternum and that in man constitute the first seven pairs * * *… …   Useful english dictionary

  • true rib — /tru ˈrɪb/ (say trooh rib) noun any of the ribs which are attached to the sternum by costal cartilages (the first seven pairs in a human body) …   Australian English dictionary

  • true rib — noun a rib which is attached directly to the breastbone …   English new terms dictionary

  • true rib — noun Date: 1741 any of the ribs having costal cartilages connected directly with the sternum and in humans constituting the first seven pairs …   New Collegiate Dictionary

  • true rib — Anat. one member of the first seven pairs of ribs that are attached in humans to the sternum by costal cartilages. [1735 45] * * * …   Universalium

  • rib — rib1 ribber, n. ribless, adj. riblike, adj. /rib/, n., v., ribbed, ribbing. n. 1. one of a series of curved bones that are articulated with the vertebrae and occur in pairs, 12 in humans, on each side of the vertebrate body, certain pairs being… …   Universalium

  • Rib — One of the 12 paired arches of bone which form the skeletal structure of the chest wall (the rib cage). The ribs attach to the building blocks of the spine (vertebrae) in the back. The 12 pairs of ribs consist of: True ribs: The first seven ribs… …   Medical dictionary

  • true — adj., adv., & v. adj. 1 in accordance with fact or reality (a true story). 2 genuine; rightly or strictly so called; not spurious or counterfeit (a true friend; the true heir to the throne). 3 (often foll. by to) loyal or faithful (true to one s… …   Useful english dictionary

  • Rib, sternal — One of the first 7 pairs of ribs. A rib is said to be a sternal rib or a true rib if it attaches to the sternum (the breast bone). All 12 pairs of ribs attach to the building blocks of the spine (vertebrae) in the back. The 12 pairs of ribs… …   Medical dictionary

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