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Advanced Anatomy > Pelvis, Pelvic Diaphragm and Perineum > Flashcards

Pelvis, Pelvic Diaphragm and Perineum Flashcards

1
Q

The perineum is the area between the thighs that extends from the …. to the …..

A

coccyx to the pubis

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2
Q

Pelvic brim is marked by the…

A

sacral promontory and pubic crest

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3
Q

Which pelvic inlet is the broadest?

A

transverse diameter

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4
Q

What three lines make up the pelvic inlet?

A

obstetrical conjugate
diagonal conjugate
transverse diameter

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5
Q

The …conjugate is used to estimate the obstetrical conjugate.

A

diagonal

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6
Q

Which conjugate does the baby’s head pass through?

A

obstetrical conjugate

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7
Q

The three pelvic bones generally do not completely fuse into a single bone until age…

A

20-25

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8
Q

Subpubic angle in females?

Males?

A

90

60

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9
Q

Gynecoid

A

female shaped pelvis

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10
Q

Android

A

male shaped pelvis

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11
Q

Anthropoid

A

elongated anterior and posterior dimension

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12
Q

Platypelloid

A

broad pelvis

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13
Q

Pelvic fractures rarely break …

A

in a single place

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14
Q

SI joint is both … and …

A

fibrous and synovial

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15
Q

Pelvic diaphragm is formed by…

A

levator ani muscle

coccygeus muscle

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16
Q

Another name for coccygeus muscle is …

A

ishiococcygeus

17
Q

3 subdivisions of the levator ani muscle…

A

puborectalis
pubococcygeu
iliococcygeus

18
Q

Levator ani and coccygeus are innervated mainly by

A

S4

19
Q

What muscle runs posterior to the anorectal junction pulling it anteriorly creating an anorectal angle?

A

puborectalis

20
Q

What part of the levator ani muscle most clinically important in birthing?

A

pubococcygeus

21
Q

Perineal body is a…

A

thick connective tissue mass

22
Q

Perineal membrane creates what two spaces?

A

superficial perineal space

deep perineal space

23
Q

In a straddle injury, where is the blood limited in its diffusion?

A

superficial perineal membrane

24
Q

The external anal sphincter muscle is formed of skeletal muscle that has what three parts?

A

deep external sphincter
superficial external sphincter
subcutaneous external sphincter

Advanced Anatomy (38 decks)

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