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Stack #195953
| Question | Answer |
|---|---|
| what are the largest vertebrae in the body | lumbar vertebrae |
| the lumbar vertebra are the largest in the body,why? | b/c holds most of the body weight |
| what is the largest vertebrae | L5 has the largest body |
| how can the intervertebra foramina be visualized | at 90 degree from the msp |
| what are the intervertebrae foramina | these are the spaces b/w the two pedicles when two vertebrae are stacked on top of each other. |
| how are the openings of the intervertebra formina formed | the openings are formed by the superior vertebrae notch of one vertebrae & the inferior vertebrae notch of another vertebrae. |
| how is the intervertebral foramina best demonstrated | 90 degree lateral |
| how are the zygapophyseal joints formed | by two IAP processes & two SAP processes |
| how does the zygopophyseal joints lie on the lumbar spine | they lie 30 to 50 degrees from msp on the lumbar spine |
| how does the zyagophyseal joints lie on the upper lumbar spine | the upper lumbar spine lie more at a 50 degree angle |
| how does the zyagophyseal joints lie on the lower lumbar spine | they lie more at 30 degree |
| for radiography what angle best demonstrates the zygapophyseal joints | 45 angle will best demonstrate the zyapophyseal joints |
| what is the pars interarticularis | the portion of the lamina b/w the superior & inferior articulating processes. |
| on the sacrum,how many sacral foramina are there | there are 4 sets of sacral foramina |
| where is the alae or wing of the sacrum located at | lateral to the first sacral segment |
| the two superior articular process of the sacrum articulate with the inferior articular process of the 5th lumbar vertebrae to form | zyagopophyseal joints |
| what is the promontory | the anterior ridge of the first sacral segment |
| where is the sacral canal located at | posterior to the body of the first sacral segment,which is continuation of the spinal canal |
| how is the median sacral crest is formed | formed by the fusion of the spinous processes |
| how does the sacrum articulates with the ilium | at the auricular surface |
| what does the sacral horns represent | the inferior articular processes from the 5th sacral segment. |
| the sacral horns articulate with | these will articulate with the cornau of the coccyx |
| each SI joint opens obliquely | posteriorly at an angle of 30 degree |
| on the coccyx where is the base | it sits superior while the apex is inferior |
| the base of the coccyx has what | two transverse processes projecting laterally |
| to be sure your oblique is at-- a scotty dog must be visualized | 45 degree |
| on the scotty dog the neck ear eye nose front leg | neck-pars intericularis ear-superior articular process eye-pedicle nose-transverse process front leg-inferior articular process |
| concering the scotty dog how is the zyagophyseal joints formed | formed by the front leg of the superior scotty dog & the ear of the inferior scotty dog |
| the way that the scotty dog faces is what side | the downside |
| how are the intervertebral foramina visualized | on a 90 degree lateral |
| how are the zygapoophyseal joints visualized on a oblique radiograph | anterior oblique shows the upside joints posterior oblique shows the downside |
| what should you use for a general lumbar radiograph | 45 degrees |
| what is best to visualized L1-L2 | 50 degrees |
| what is best to visualized L5-LS1 | 30 degrees |
| what is the reason for the different obliques for the zygapophyseal joints | L1 is closer to the thoracic vertebrae,which require 70-70 obliquely to visualize the zygapophyseal joints |
| symphysis pubis is at what level | is at the level of mid coccyx |
| greater trochanter is at what level | about 1" superior to the symphysis publis |
| ASIS is at what level | the same level as the 1st or 2nd sacral segment |
| iliac crest is at what level | L4-L5 |
| lower costal margin is at what level | L2-L3 |
| what should you flex the knees on a AP projection of the lumbar spine | this brings spine closer to the IR and lumbar column more parallel to the table top |
| what is the advantage of a PA | lower dose to female ovaries and places the intervertebrae disk spaces more parallel with the divergence of the beam |
| what is the disadvangtage of a PA | large OID of the vertebrae |