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PT 505 Anatomy Lab > Pelvis & Hemipelvectomy > Flashcards

Pelvis & Hemipelvectomy Flashcards

1
Q

External Anal Sphincter Origin

A

skin & fascia surrounding anus; coccyx via anococcygeal ligamen

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2
Q

External Anal Sphincter Insertion

A

perineal body

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3
Q

External Anal Sphincter Innervation

A

Inferior anal (rectal) nerve, a branch of pudenal nerve (S2-S4)

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4
Q

External Anal Sphincter Action

A

Constricts anal canal during peristalsis, resisting defecation; supports and fixed perineal body and pelvic floor

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5
Q

Obturator Internus Origin

A

Pelvic surfaces of ilium and ishium; obturator membrane

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6
Q

Obturator Internus Insetion

A

Greater Trochanter of femur

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7
Q

Obturator Internus Acton

A

Rotates thigh laterally; assists in holding head of femur in acetabulum

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8
Q

Obturator Internus Innervation

A

Nerve to Obturator Internus (L5, S1, S2)

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9
Q

Ischiococcygeus Origin

A

Ischial Spine

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10
Q

Ischiococcygeus Insertion

A

Inferior end of sacrum and coccyx

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11
Q

Ischiococcygeus Innervation

A

Branches of S4 and S5 spinal nerves

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12
Q

Ischiococcygeus Action

A

Forms small part of pelvic diaphragm that supports pelvic viscera; flexes coccyx

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13
Q

Puborectalis Origin

A

right and left of pubic bodies

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14
Q

Puborectalis Insertion

A

anal rectal junction

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15
Q

Levator ani innervation ( puborectalis, pubococcygeus, and iliococcygeus)

A

S4 branches and inferior anal (rectal) nerve

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16
Q

Pubococcygeus Origin

A

posterior aspect of the body of the pubis

17
Q

Pubococcygeus Insetion

A

anterior part of the tendinous arch to the coccyx

18
Q

Levator Ani action

A

forms most of the pelvic diaphagm that helps support pelvic viscera and resists increase in intra-abdominal pressure

19
Q

Iliococcygeus Origin

A

posterior part of the tendinous arch and ischial spine

20
Q

Iliococcygeus Insertion

A

anococcygeal ligament and tip of the coccyx

21
Q

Superficial Transverse perineal Origin

A

Internal surface of ischiopubic ramus and ischial tuberosity

22
Q

Superficial Transverse Perineal Insertion

A

Perineal Body

23
Q

Superficial Transverse Perineal Innervation

A

Muscular (deep) branch of perineal nerve, a branch of pudendal nerve (S2-S4)

24
Q

Superficial Transverse Perineal Action

A

supports and fixes perineal body/pelvic floor to support abdominopelvic viscera and resist increases intra-abdominal pressure

25
Q

Deep Transverse Perineal Origin

A

Internal Surface of ischiopubic ramus and ischial tuberosity

26
Q

Deep transverse Perineal Insertion

A

Perineal body and external anal sphincter

27
Q

Deep transverse perineal innervation

A

Muscular (deep) branch of perineal nerve, a branch of pudendal nerve (S2-S4)

28
Q

Deep transverse Perineal Action

A

supports and fixes perineal body/pelvic floor to support abdominopelvic viscera and resist increases intra-abdominal pressure

29
Q

Bulbospongiosus Origin (Male)

A

Median raphe on ventral surface of bulb of penis; perineal body

30
Q

Bulbospongiosus Insertion (male)

A

Perineal membrane, dorsal aspect of corpus spongiosum and corpora cavernosa, and fascia of bulb of penis

31
Q

Bulbospongiosus Action (Male)

A

Supports and fixes perineal body/pelvic floor; compresses bulb of penis to expel last drops of urine/semen; assists erection by compressing outflow via deep perineal vein and by pushing blood from bulb into body of penis

32
Q

Bulbospongiosus Origin (female)

A

Perineal body

33
Q

Bulbopongiosus Insertion (female)

A

Pubic arch and fascia or corpora cavernosa of clit

34
Q

Bulbospongiosus Action (female)

A

Supports & fixes perineal body/pelvic floor; “sphincter” of vagina; assists in erection of clit; compresses greater vestibular gland

35
Q

Bulbospongiosus Innervation

A

Muscular (deep) branch of perineal nerve, a branch of pudendal nerve (S2-S4)

36
Q

Ischiocavernosus Origin

A

Internal surface of ischiopubic ramus and ischial tuberosity

37
Q

Ischiocavernosus Insertion

A

Inferior and medial aspects of crus and to perineal membrane medial to crus

38
Q

Ischiocavernosus Innervation

A

Muscular (deep) branch of perineal nerve, a branch of pudendal nerve (S2-S4)

39
Q

Ischiocavernosus Action

A

Maintains erection of penis or clit by compressing outflow veins and pushing blood from the root of penis or clit into the body of penis or clit

PT 505 Anatomy Lab (9 decks)

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