Ortho Final Practice Test
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Created by:
ggreenfield on June 10, 2012
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23 terms
Terms | Definitions |
|---|---|
 The anterior sacral ligament is an anterior inferior thickening of the ... | Fibrous capsule |
| The major connection between the sacrum and innominate is the _____ ligament? | Interosseous ligament |
| This ligament is taut in counternutation ... | Dorsal sacroiliac ligament |
| Rotation of the Sacrum forward a few degrees in relation to the Ilia. Anterior movement of the sacrum around a transverse axis relative to the hip bones. | Nutation (L. nodding) |
| Rotation of the Sacrum back a few degrees in relation to the Ilia. Posterior movement of the sacrum around a transverse axis relative to the hip bones. | Counternutation |
| This ligament stabilizes against nutation and also counteracts the dorsal and cranial migration of the sacral apex during weight bearing. | Sacrotuberous ligament |
| The three large bones which form the hip bone. | Innominate (Latin: nameless) |
| How many muscles attach to the sacroiliac joint? | 35 |
| T/F The muscles that attach to the S/I joint primary function is to move it. | False |
| T/F The muscles that attach to the S/I joint primary function is to stabilize it. | True |
| The _____ muscle is an internal rotator and abductor of the hip if the joint is flexed beyond 90°. | Piriformis |
| A state of stability that is dependent on the anatomy with no need for extra force. | Form closure |
| Requires intrinsic and extrinsic forces to keep the SI joint stable. | Force closure |
| The components of the self-locking mechanism are ... | Neurological systems, myofascial systems, and gravity. (NOT muscles) |
| This is critical for the self-locking mechanism ... | Ability of the sacrum to nutate. |
| Where the joint occupies or attains its most congruent position. | Self-locking mechanism AKA Close pack position |
| The hip articulation is formed between the _____ and the _____. | Head of the femur and acetabulum of the pelvic bone. |
| There are _____ plane motions in the hip joint. They are _____. | 3, Sagittal, Frontal, and Transverse |
| T/F All of the planes of motion in the hip joint pass through the center of the femoral head. | True |
| The greater trochanters are _____ the pubic tubercles. | Level with |
| Sprung pelvis is a separation of ... | Pubic symphysis and SI joints |
| The most common areas in the hip for avulsion fractures are? | ASIS, AIIS, and Ischial Tuberosity (NOT PSIS, PIIS, Iliac tubercle, Iliac tuberosity) |
| The lesser trochanter is created from the pull of the ... | Iliopsoas |
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