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14 Cards in this Set
- Front
- Back
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ribs are found on |
each side of the thoracic cavity |
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how many pairs of ribs are there? |
12 pairs, 24 in total |
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how many true pairs of ribs are there? and where are they connected? |
7, connected directly to the sternum |
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how many false pairs of ribs are there? |
5 pairs (lower), indirectly or not at all attached to sternum |
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where is the sternum? |
in the middle of thorax, it connects ribs via cartilage |
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what does the ribcage and sternum do? |
help protect heart/ lungs |
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joints are between |
sternum & ribs ribs & vertebrae |
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what do the joints help with? |
help in mobility of ribcage which is important in respiration (inspiration & expiration) |
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Thorax as a unit has: |
12 pairs of ribs sternum 12 thoracic vertebrae and their intervertebral disks |
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synovial junction between |
ribs 2-5 |
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which ribs are joined to sternum and by what? |
1, 6 and 7 by cartilaginous joint |
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interchondral joints |
special articulation between cartilages 6-9th ribs |
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costovertebral joints |
joints of head of ribs with vertebral column represent double chambered joints each rib articulates with 2 neighbouring vertebrae except 1, 11 and 12 |
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costotransverse joints |
ribs articulate with the transverse processes of vertebrae except 11, 12 |
