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Bony Thorax

QuestionAnswer
what forms the bony thorax -sternum -12 pairs of ribs -12 thoracic vertebrae
is the posterior of the bony thorax longer or shorter than the front longer
how long is the sternum 6" long
what is the purpose of the sternum -attachment for costal cartilages of first seven pairs of ribs at lateral borders -forms SC joints -supports clavicles at manubrial angles
what are the three parts of the sternum -manubrium(most superior) -body(gladiolus) -xiphoid process(most inferior)(ensiform)[top at T9 and tip at T10]
-quadrilateral in shape -widest portion of sternum -jugular notch at superior border *palpable landmark *lies at T2-T3 interspace -has a clavicular notch where sternoclavicular joints are manubrium
which ribs are considered true ribs 1st seven
-longest portion of sternum(about 4") -joined to another portion of sternum to create sternal angle -sternal angle is palpable and lies at T4-T5 -provides attachment for costal cartilage of first seven ribs at lateral border Body of sternum
-most distal portion of sternum -often deviates from midline -useful landmark -tip lies over T10 and body lies over T9 xiphoid process
funnel chest/caved chest/cereal chest pectus excavum
pigeon chest/bulges out/extra bone pectus carinatum
how many pairs of ribs to we have -12(may increase with presence of a cervical or lumbar rib)*number corresponds to thoracic vertebrae to which it attaches
what classification of bone are the ribs flat
anterior ends of ribs lie higher or lower than posterior ends lower
what plane do the ribs sit in oblique
intercostal space is made up of what intercostal muscle(important during respiration)
ribs vary in _____ and _____ -length -width (increase in length from 1-7, then decrease from 8-12)
which ribs are false ribs 8-12
which ribs are floating 11 and 12
tubercle of rib articulates with _____ transverse process
head of rib articulates with ______ vertebral body
what are the 2 extremities of ribs vertebral and sternal
typical rib consist of ? -head -neck -tubercle -body -costal angle(lots of nerves sit here)
costovertebral joint head of rib and facet of vertebrae
costotransverse joint tubercle of rib and transverse process
costochondral between anterior extremities and costal cartilage
sternoclavicular joint classification synovial/gliding.freely moveable
costovertebral: 1st-12th classification synovial/gliding/freely moveable
costotransverse: 1st-10th classification synovial/gliding/freely moveable
costochodral: 1st-10th classification cartilaginous/synchondroses/immovable
sternocostal: 1st rib classification cartilaginous/ synchondroses/ immovable
sternocostal: 2nd-7th classification synovial/gliding/freely moveable
interchodral: 6th-9th classification synovial/gliding/freely moveable
interchondral: 9th-10th classification fibrous/syndesmoses/slightly moveable
manubriosternal classification cartilaginous/ symphysis/ slightly moveable
xiphisternal classification cartilaginous/ synchondroses/ immoveable
what is it called when the body of the sternum separates from the manubrium flail chest
Created by: bigad1982