Chapter 10

Bony Thorax

Bony Thorax

• 1 ____________

• 12 ______________

• 12 ____________

Bony Thorax

• Protects:– _________ organs– _________ organs

• __________ during breathing

Sternum

• 3 parts– _____________

• Superior portion 2” long

– ________ (Gladiolus)• Longest portion 4” long

– _____________• Smallest most distal.

Sternal Landmarks

• ____________(suprasternal or manubrial)– Correlates to T2-3

• _________________– Correlates to T4-5

• Xiphoid tip– Correlates to _________

Sternal Articulations

• Clavicle – _________________ joint

• 7 ribs – Through ______________

• 1st rib costocartilage on manubrium

Ribs• 12 pairs

• ___________– Costocartilage connection anteriorly to the sternum

• __________– 8,9,&10 costocartilage attach to the 7th

– _________(11 &12) – No costocartilage articulation

Rib AnatomyPosterior

• Vertebral end–___________

• Vertebral body

–________

–________ –Transverse process

Rib AnatomyAnterior

• Sternal end– _______

– Shaft

• _______________– Artery, vein, and nerve

Rib ArticulationsAnterior

• ________________ Union – Rib and costocartilage

• Synarthrodial

• ___________________– Sternum and clavicle

• Diarthrodial

Rib ArticulationAnterior

• ________________– Costocartilage to sternum.

• _____________• 2-7 diarthrodial

• ______________–Costocartilage of 6th – 10th

• Diarthrodial

Rib ArticulationPosterior

• _________________–Head of rib to vertebral body

• Diarthrodial

• _________________–Rib ______ to transverse process

• 1 - 10• Diarthrodial

Sternum Imaging

Routine• RAO• Lateral• 40” SID** RAO• 60-72” SID Lateral• 60 – 70 kVp

RAO Sternum

• Moves sternum _______________– Uses ___________ to provide density

• _____________ Oblique– Body habitus dependent

• Breathing technique– Blurs pulmonary markings

RAO Sternum

• CR to mid sternum– Palpate for ____________and xiphoid– Center to mid sternum

• Collimate about ___________

Lateral Sternum

• Increase ________for increased ______

• _________- Arms back

• _____________– Arms above head

Lateral Sternum

• CR to mid sternum– Place IR ____________jugular notch

• Suspend respiration– ___________

Rib Imaging

Routine• PA Chest• AP above diaphragm 60kV• AP below diaphragm 70kV• RPO/LPO above diaphragm 60kV• 40-72” SID (Unilateral or Bilateral)

AP Above Diaphragm

• Center to ______________

• CR to _________

• IR _________shoulder center to cassette

• Suspend respiration on _____________

AP Below Diaphragm

• Center to affected side• CR mid way between _______ and

_________• Suspend respiration on ___________

– Move diaphragm up and away

RPO / LPO Above Diaphragm

• __________ Oblique

• CR between spine a ________ rib margins

• IR _________shoulder and center to IR

• Suspend respiration on ___________

Helpful Tip

• Mark the _____________

• Place a ____________on area of interest.