Pelvis Flashcards

1
Q

Which pelvis type has the highest chance of normal delivery?

A

Gynecoid

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2
Q

Which pelvic type is the “normal female type”?

A

Gynecoid

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3
Q

What is the subpubic angle of the Gynecoid pelvis?

A

90-100

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4
Q

Which pelvis type has a subpubic angle of 90-100 degrees?

A

Gynecoid

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5
Q

Which pelvis type is “slightly transverse oval”?

A

Gynecoid

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6
Q

What is the shape of the gynecoid pelvis?

A

slightly transverse oval

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7
Q

50% of women have which pelvic type?

A

Gynecoid

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8
Q

Which pelvis type is “evolutionary/ape-like”?

A

Anthropoid Pelvis

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9
Q

Which pelvis types have a narrow subpubic angle <90 degrees?

A

Anthropoid & Android Pelvis

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10
Q

Which pelvis type has long anteroposterior, and a short transverse dimensions?

A

Anthropoid Pelvis

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11
Q

Which pelvis type is “feminine with masculine features”?

A

Anthropoid Pelvis

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12
Q

Which pelvis type is the “flat, female type”?

A

Platypelloid Pelvis

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13
Q

Which pelvis type has short anteroposterior, and a long transverse dimensions?

A

Platypelloid Pelvis

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14
Q

Which pelvis type do 3% of women have

A

Platypelloid Pelvis

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15
Q

Which pelvis type has a wide subpubic angle?

A

Platypelloid Pelvis

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16
Q

Which pelvis type is the “male type”?

A

Android

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17
Q

What is the angle of the Android pelvis?

A

<90, narrow

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18
Q

Which pelvis type is distinguished as “funnel, triangle, heart-shaped”?

A

Android

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19
Q

Pelvic Outlet:

Superior or Inferior Pelvic Aperture ?

A

Outlet = inferior

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20
Q

Pelvic Inlet:

Superior or Inferior Pelvic Aperture ?

A

Inlet = Superior

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21
Q

What joins the Os Coxae anteriorly?

A

Pubic Symphysis

22
Q

What joins the Os Coxae posteriorly?

A

Sacroiliac Joint

23
Q

Which Os Coxae bone is the superior portion?

A

Ilium

24
Q

Which Os Coxae bone is the posterior portion?

A

Ischium

25
Q

Which Os Coxae bone is the lower anterior portion?

A

Pubis

26
Q

What is the anterior articulation of the Os Coxa?
What does it connect?

A

Pubic Symphysis
Pubis bones

27
Q

What is the posterior articulation of the Os Coxa?
What does it connect?

A

Sacroiliac Joint
Sacrum and Ilium

28
Q

What is the lateral articulation of the Os Coxa?
What does it connect?

A

Acetabulum deep sockets:
-Accept femur head, form hip joints

29
Q

What structures does the pubic symphysis join? Which direction?

A

Anteriorly joins pubis bones

30
Q

What structures does the sacroiliac joint join? Which direction?

A

Posteriorly joins sacrum and ilium

31
Q

What do the deep sockets of the acetabula join? Which direction?

A

Laterally accept femur heads, form hip joints

32
Q

Which pelvic structure is made of 5 fused vertebrae?

A

Sacrum

33
Q

What is the “most superior portion of the sacrum”?

A

Sacral promontory

34
Q

What is the “Pelvic inlet border”?

A

Sacral promontory

35
Q

Which pelvic structure is made of 4 fused vertebrae?

A

Coccyx

36
Q

Which pelvic structure is formed of 3-5 rudimentary vertebrae?

A

Coccyx

37
Q

Which structure is responsible for “posterior articulation of the ilium and sacrum”?

A

Sacroiliac joint

38
Q

Which structure is responsible for “anterior articulation of the coccyx and sacrum”?

A

Sacrococcygeal joint

39
Q

Which pelvic joint is slightly moveable back and forth?

A

Sacrococcygeal joint

40
Q

Which pelvic joint helps absorb shock from walking?

A

Pubic Symphysis

41
Q

Which pelvic joint helps separate pelvic bones at birth?

A

Pubic Symphysis

42
Q

What is the pubic symphysis gap in pregnant women?

A

<9 mm

43
Q

What is the pubic symphysis gap in non-pregnant women?

A

4-5 mm

44
Q

Together, which two structures form the lesser and greater sciatic foramen?

A

Sacrospinous Ligament & Sacrotuberous Ligament

45
Q

Together, which two structures close off the lesser and greater sciatic notches?

A

Sacrospinous Ligament & Sacrotuberous Ligament

46
Q

Which pelvic ligament is thick & triangular?

A

Sacrospinous Ligament

47
Q

Which structure extends from the lateral border of the Coccyx and Sacrum to the Ischial Spine?

A

Sacrospinous Ligament

48
Q

Where is the sacrospinous ligament (what is it connecting)

A

Lateral border of the Coccyx and Sacrum to the Ischial Spine

49
Q

Which pelvic structure prevents posterior rotation of the ilium, with respect to the sacrum?

A

Sacrospinous Ligament

50
Q

Which pelvis structure laterally and posteriorly suspends the vaginal apex?

A

Sacrospinous Ligament

51
Q

Which directions does the Sacrospinous Ligament suspend the Vaginal Apex?

A

posteriorly and laterally