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144 lower limb > arthrology of the pelvis > Flashcards

arthrology of the pelvis Flashcards

1
Q

name the bones that make up the pelvis

A

2 x innominate bones
sacrum
coccyx

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2
Q

what 4 joints make up the pelvis

A

2 x sacroiliac joints
pubic symphysis
lumbosacral joint

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3
Q

what is another name for the pelvic inlet

A

superior pelvic aperture

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4
Q

what is another name for the pelvic outlet

A

inferior pelvic aperture

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5
Q

what parts form the greater (false) pelvis?

A

superior aspects of ilia and pubi above the pelvic brim and anterior abdominal musculature

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6
Q

what parts form the lesser (true) pelvis?

A

pubic symphysis and superior pubis ramus anteriorly
sacrum ad coccyx posteriorly
medially bodies and tuberosities of ischium

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7
Q

classify the sacroiliac joint

A

anteriorly- synovial, modified plane, simple, multi-axial
posteriorly- fibrous

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8
Q

classify the pubic symphysis joint

A

secondary cartilaginous

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9
Q

classify the lumbosacral joint

A

anteriorly- secondary cartilaginous
posteriorly- synovial, plane, simple, multi-axial

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10
Q

classify the sacrococcygeal joint

A

secondary cartilaginous OR synovial
-fibrous in old age

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11
Q

what are the 6 main ligaments of the sacroiliac joint (SIJ)

A

anterior SIJ ligament
interosseous SIJ ligament
short posterior SIJ lig
long posterior SIJ lig
sacrotuberous lig
sacrospinous lig

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12
Q

what is the role of the anterior SIJ ligament

A

resists posterior movements of the sacrum

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13
Q

what is the role of the interosseous ligament

A

resists separation of the sacrum and ilium

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14
Q

what is the role of the short posterior SIJ ligament

A

resists anterior movement of the sacrum

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15
Q

what is the role of the long posterior SIJ ligament

A

resists downwards gliding of the sacrum

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16
Q

what is the role of the sacrotuberous and sacrospinous ligaments

A

resist anterior rotation of the sacrum

17
Q

what are the 2 main ligaments of the lumbosacral joint

A

iliolumbar ligament and lumbosacral ligament

18
Q

what are the attachments of the iliolumbar ligament

A

tip of L5 transverse process to iliac crest

19
Q

what are the attachments of the lumbosacral ligament

A

lower border of L5 transverse process to ala of sacrum

20
Q

what movements do the lumbosacral joint ligaments limit

A

lateral flexion of the lumbar spine

21
Q

what are the functions of the pelvis

A

-weightbearing- while standing transfers weight to the lower limbs,, during sitting transfers weight to the ischial tuberosities
-large bony surface for muscle attachment
- support and protection of viscera
- bony canal for childbirth

144 lower limb (10 decks)

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