Spine Anatomy Word Scramble
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Question | Answer |
What is made up of five fused vertebrae and is triangular in shape? | Sacrum |
What are the functions of the sacrum? | Provide stability and transmit weight to pelvis |
What part of the sacrum articulates with the coccyx? | Inferior part of the Apex |
What part of the sacrum articulates with last lumbar vertebrae? | Superior part of the base |
The transverse ridges of the anterior sacrum seperate what? | The sacral bodies |
Anterior and inferior mvmt of the promontory is called? | Nutation |
Posterior and superior mvmt of the promontory is called? | Counternutation |
The lateral sacrum has an auricular surface that has __________ and is _________. | hyeline cartilage, irregular |
The ala of the sacrum is continuous with the what? | Ilium |
The lumbosacral angle consists of? | the Long axis of lumbar vertebrae and Long axis of sacrum |
What is the range of the lumbosacral angle? | 130-160 degrees |
The coccyx consists of? | Four fused vertebrae |
The innominate is fromed by fusion of the ______,________, and ________. | Ilium, ischium, pubis |
What are two characteristics of the auricular surface of the ilium? | it has hyaline cartilage, and an irregular surface. |
What are the functions of the pelvis? | Protect and support viscera, Supports body weight in standing and sitting,Attachment for muscles and ligaments |
The median sacral crest corresponds to what part of the lumbar vertebrae? | Spinous process |
The intermediate sacral crest corresponds to what part of the lumbar vertebrae? | articular process |
The lateral sacral crest corresponds to what part of the lumbar vertebrae? | Transverse process |
The area lateral to median sacral crest corresponds to what part of the lumbar vertebrae? | Lamina |
The dorsal sacral foramina correspond to what part of the lumbar vertebrae? | intervertebral foramina |
The lumosacral joint is between what structures? | the last lumbar vertebrae and the 1st sacral vertebrae |
The superior surface of the sacrum is how many degrees from horizontal? | 30° |
What direction do the S1 facets face? | Posteriomedially |
Why to the S1 facets face the direction that they do? | for better stability |
Iliolumbar ligaments run from TP of _______ to _______. | L4\L5, Iliac crest |
What are the primary sacroiliac ligaments? | Anterior, posterior, and interosseous. |
Of the sacroiliac ligaments which are strong? | posterior and interosseous |
What are the motions of the lumbosacral joint? | flexion, extension, lateral flexion, and minimal rotation |
The anterior sacroiliac ligaments are ______(weak or strong)? | Weak |
What are the attachments of the anterior SI ligaments? | the ala and pelvic surface of the sacrum to the auricular surface of the ilium |
What are the attachments for the Long and Short Posterior SI Ligaments? | Intermediate and lateral sacral crest of sacrum to the PSIS and inner lip of iliac crest |
Which SI ligaments are the strongest? | Interosseus |
What are the attachments of the interosseous SI ligaments? | Lateral sacral crest to Iliac tuberosity (tuberosity of ilium). |
What is the function of the long and short posterior SI ligaments? | to prevent counter nutation |
What is the function of the interosseus SI ligaments? | to prevent nutation |
What are the accessory SI ligaments? | sacrotuberouse and sacrospinous |
What motion do sacrotuberous and sacrospinous prevent? | nutation |
Sacrotuberous attachments are? | Sacrum, ilium, coccyx to Ischial tuberosity |
Sacrospinous attachments are? | Sacrum and coccyx to Ischial spine |
Is sacrospinous deep or superficial to sacrotuberous? | deep |
What Structures entering\leave the pelvis via the greater sciatic foramen? | Piriformis & Sciatic nerve |
What structures enter\leave the perineum via the lesser sciatic foramen? | pudendal nerve |
SI joint stability is provided by what? | SI ligaments, auricular surface irregularities and wedging |
Created by:
txst spr 2009
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