Rib, true

Rib, true
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.

Medical dictionary. 2011.

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Look at other dictionaries:

  • 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 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

  • Rib — Rib, n. [AS. rib, ribb; akin to D. rib, G. rippe, OHG. rippa, rippi, Dan. ribbe, Icel. rif, Russ. rebro.] 1. (Anat.) One of the curved bones attached to the vertebral column and supporting the lateral walls of the thorax. [1913 Webster] Note: In… …   The Collaborative International Dictionary of English

  • Rib grass — Rib Rib, n. [AS. rib, ribb; akin to D. rib, G. rippe, OHG. rippa, rippi, Dan. ribbe, Icel. rif, Russ. rebro.] 1. (Anat.) One of the curved bones attached to the vertebral column and supporting the lateral walls of the thorax. [1913 Webster] Note …   The Collaborative International Dictionary of English

  • rib — [rib] n. [ME ribbe < OE rib, akin to ON rif, Ger rippe < IE base * rebh , to arch over, roof over > Gr ereptein, to crown, OSlav rebro, rib] 1. any of the arched bones attached posteriorly to the vertebral column and enclosing the chest… …   English World dictionary

  • 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 ribs — Anterior surface of sternum and costa cartilages. (True ribs are first seven.) Gray s subject #28 123 The first seven ribs ar …   Wikipedia

  • 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 — This article is about the part of the skeleton. For other uses, see Rib (disambiguation). Single human rib detail The …   Wikipedia

  • Rib, cervical — A extra rib which arises from the seventh cervical vertebra. It is located above the normal first rib. A cervical rib is present in only about 1 in 200 (0.5%) of people. It may cause nerve and artery problems. There are normally 12 pairs of ribs… …   Medical dictionary

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