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Bony Thorax


What is the function of the Bony Thorax? supports the walls of the plural cavity and diaphragm used in resp. and protects the heart and lungs
What bones are in the Bony thorax? 12 pairs of ribs, 12 thoracic vertebrae and the sternum
what part of the bony thorax is most narrow? the superior part
Where does the sternum support the clavicles? The superior manubrial angles
what is the widest part of the sternum and what shape is it? manubrium and quadrilateral
which way do the sides of the manubrium slant at the jugular notch? laterally and posteriorly at the
what oval facet of the manubrium articulates the clavicle? clavicular notch
what articulates at the sternal angle? second rib
what kind of angle is the sternal angle? obtuse
what level is the sternal angle at? t-4/t-5
What can the xiphoid process help locate? T10-11, superior portion of the liver and inferior border of the heart
what is another name for costal cartilage? hyaline cartlige
Where does the costal cartliage for the 8th-10th ribs connect? the cartilage of the 7th rib
How far below the vertebral anterior ends of the ribs lie compared to the vertebral ends? 3-5 inches
The obliquity of the ribs increases from what rib to what rib? 1-9
The obliquity of the ribs decreases from what rib to what rib? 10-12
What is a cervical rib/lumbar rib? rib that articulates with C7, rib that articulates with L1
Which rib is the shortest and broadest? 1
which rib is the narrowest? 12
which rib is typically the longest? 7
What articulates with the transverse process of the vertebrae? Tubercle facet
what are the ends of the ribs called? vertebral end, sternal end
the rib arches what ways to the oblique plane? anteriorly, medially and inferiorly
where is the costal groove found and what does it contain? inferior and internal border of each rib and it holds costal arteries, veins and nerves
What is the only point of articulation between the upper extremities and the trunk? sternoclavicular joint
what kind of joint is the sternoclavicular joint? synovial gliding
what joints are synchondroses (immovable) joints? xiphisternal, 1st - 10th costochondral
Which ribs only articulate with the vertebral body? 1st, 10th, 11th, and 12th
what ribs only allow superior and inferior movement and which allow more movement? the first 6 pair, the next 4 provide more movement
Costochondral articulations are what kind of joint and what type of movement? they are cartilaginous and allow no movement
Costochondral articulations are what? they are the joint between the bone of the rib and the cartilaginous
What kind of joint is the first costosternal joint? cartilaginous synchonrosis and immovable
what are interchondral joints? they are between the costalcarilages of the 6th & 7th, 7 &8, 8&9th ribs, synovial gliuding
What type of joints are the interchonral joints of the 9th and 10th ribs? fibrous syndesmosis and only slightly movable
What type of joint is the manubriosternal joint? cartilaginous symphysis joint, little or no movement
xiphosternal joint is what kind of joint? cartilaginous synchondrosis little to no movement
how is the obliquity of the ribs affected by inspiration and expiration? it decreases on deep insp. and increased on deep exp.
how do you remove the scapula from the lung field on a CXR? rotate the shoulders forward
When doing an xray of the lower ribs, what position should the patient be? recumbent
how many inches does the diaphragm move from deep insp. to deep exp.? about 1.5 inches
what should be the initial exam/s of a pt who has severe trauma to the ribs? AP and LAT chest in recumbent position to show fluid/Air levels
what is osteomylitis? inflammation of the bone owing to a pyogenic infection
when is a grid required in a CXR? when KVP is above 100
To visualize the sternum free of the vertebrae what do you have to do? rotate the pt from the prone position or angle the CR medially
deep chests require more or less angulation to visualize the sternum? less
how do you reduce abnormal lung markings over the sternum? you use a breathing technique of shallow breathing and a longer exposure time
where does the CR enter for an RAO sternum?> level of T7 1 inch lateral of midsaggital palne Merrill's recommends 30'' SID`
Where does the CR enter for a PA SC joint Xray? T3 with a 6x8 collimation
what is the angle for Oblique SC joints and where is the CR? 15-20 T2-T3
What position are the axillary ribs shown? oblique
what projection clears the heart when shooting L ribs? LAO or RPO
what percent of people are sthenic ? 50%
what type of build is hyposthenic and what percentage of people are they? slender normal and 35%
what type of build is hypersthenic and what percentage of people are they? stocky - 5%
what type of build is asthenic and what percentage of people are they? very slender 10%
Created by: christina325