Thorax Anatomy
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| Typical thoracic vertebrae have costal facets that are also known as what? | Demifacets
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| Costal facets articulate with what? | head of rib
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| Clinically, where does the T spine begin? | T3
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| T1 and T2 are typically examined with the _____ spine. | Cervical
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| T1-T3 SP is located where in, relation to the body of the vertebrae? | level with body
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| T4-T6 SP is located where in? | level with inferior disc
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| T7-T9 SP project where? | one level below TP
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| T10-T12 SP are located where? | level with body
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| Thoracic facets allow for which types of mvmt? | rotation and side bending
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| What else, besides facets, dictate mvmt in the thoracic spine? | Ribs
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| "Typical" thoracic ribs are which ribs? | 3-9
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| Ribs 1-7 are considered ____ ribs. | True
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| Ribs 8-10 are considered _____ ribs. | False
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| Ribs 11-12 are considered _____ ribs. | Floating
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| T1 has how many facets? | 1.5 (one full one for the 1st rib and half of one for rib two)
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| In T2-T9 there are how many demifacets on each side? | two
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| Does T10 have a demifacet or a full costalfacet? Where is it located on the vertebrae? | full costalfacet/body
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| Where is the costal facet located in T11-12? | pedicle
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| Does T10 have a costotransverse facet? | yes
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| Do T11-12 have a costotransverse facet? | no
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| What are the atypical ribs? | 1,2,10-12
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| What defines a true rib? | attach directly to sternum via costal cartilage.
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| What is at risk for compression on the 1st rib (the subclavian artery or vein) | Artery (b/c the scalenes attach on both sides of it)
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| What defines a false rib? | attach to sternum indirectly via the costal cartilage of the rib above.
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| What defines a floating rib? | does not connect to the sternum.
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| What is atypical about the second rib? | tubercle for the posterior scalene.
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| What rib attaches only to the manubrium? | 1st
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| The manubrium has a demifacet for articulation with what rib? | 2nd
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| What is the sternebrae? | 4 fused segments of the sternum
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| There are facets on the sternum for which ribs? | 2-7
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| Of the facets on the sternum, the facets for the 2nd and 7th rib are considered __________ and the facets for the 3rd-6th ribs are _____ ______. | demifacets/full facets
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| The xiphoid has a demifacet for articulation with which rib? | 7th
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| The xiphoid ossifies around what age? | >= 40 y/o
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| What is the open-packed position for the SC joint? | arm at side
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| What is the closed-packed position for the SC joint? | full elevation
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| It is considered a medical emergency if the clavicle moves too far in what direction? | posterior
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| What passes posterior to the right SC joint? | Brachiocephalic trunk
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| What passes posterior to the left SC joint? | Common carotid and subclavian arteries
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| What are the functions of the thoracic cavity? | protect contents of the thoracic cavity and respiration
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Created by:
txst spr 2009
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