| Term 
 
        | Location of intercostal vessels and nerves/ costal bundles |  | Definition 
 
        | In fascial plane between internal intercostals and innermost intercostals. |  | 
        |  | 
        
        | Term 
 
        | Location of collateral branches of intercostal nerves/vessels |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | Superficial muscles of intrinsic back |  | Definition 
 
        | splenius capitis and cervicis |  | 
        |  | 
        
        | Term 
 
        | group name of deep muscles of intrinsic back |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | Individual names of deep muscles of intrinsic back (list superficial to deep) (list number of vertebrae fibers typically traverse) |  | Definition 
 
        | semispinalis (4-6 vertebrae/fiber), multifidus (2-3 vertebrae/fiber), rotares (1-2 vertebrae/fiber). |  | 
        |  | 
        
        | Term 
 
        | accessory inspiration muscles that attach to the 1st rib |  | Definition 
 
        | anterior scalene, middle scalene (anterior and posterior, respectively, to scalene tubercle on rib) |  | 
        |  | 
        
        | Term 
 
        | accessory inspiration muscle that attaches inferiorly to 2nd rib |  | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | conical inferior end of the spinal cord |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | spinal roots found in the vertebral canal inferior to L2, the lumbar cistern (in the typical adult; sometimes as low as L3.  Even lower for children). |  | 
        |  | 
        
        | Term 
 
        | meningeal branches of the spinal nerves |  | Definition 
 
        | the only branches from the mixed spinal nerves (which splits laterally into posterior and anterior rami).  Communicates with sympathetic ganglia; carries at least GSAs and GVEs. |  | 
        |  | 
        
        | Term 
 
        | Dermatomes to know: C3/C4
 T4/T5
 T10
 T12/L1
 |  | Definition 
 
        | base of neck/shoulder nipple line
 umbilicus
 groin
 |  | 
        |  | 
        
        | Term 
 
        | which intercostal does the R. bronchial branch from? |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | what is the shape of the vertebral canal in the various regions of vertebrae? |  | Definition 
 
        | cervical - triangular thoracic -  circular
 lumbar - triangular
 |  | 
        |  | 
        
        | Term 
 
        | which ribs have tubercles? |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | which ribs articulate with demifacets? |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | do ribs that articulate with demifacets articulate superior or inferior to same-numbered vertebrae? |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | which ribs are "floating?" |  | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 
        | which ribs have no neck/tubercle? |  | Definition 
 | 
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