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Clinical Anatomy 2 - Abdomen > Muscles of the Pelvis > Flashcards

Muscles of the Pelvis Flashcards

1
Q

Iliacus - Attachments

A

from iliac fossa to lesser trochanter of femur

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2
Q

Iliacus - Actions and Innervation

A

actions- flexion of thigh at the hip joint
innervation- femoral nerve

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3
Q

Psoas Major - Attachments

A

attachments- from transverse processes of T12-L4 to lesser trochanter of femur

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4
Q

Psoas Major - Actions and Innervation

A

actions- flexion of thigh at the hip joint
innervation- ventral rami L1-L3

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5
Q

Piriformis - Attachments

A

attachments- from sacrum to greater trochanter of femur

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6
Q

Piriformis - Actions and Innervation

A

actions- lateral rotation of thigh at the hip joint
innervation- nerve to piriformis

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7
Q

Obturator internus - Attachments

A

attachments- from obturator membrane to greater trochanter of femur

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8
Q

Obturator internus - Actions and Innervation

A

actions- lateral rotation of thigh at the hip joint
innervation- nerve to obturator internus

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9
Q

Coccygeus - Attachments

A

attachments- from & sacrospinous ligament to coccyx

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10
Q

Coccygeus - Actions and Innervation

A

actions- supports & compresses posterior pelvic floor
innervation- ventral rami S4-5

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11
Q

Iliococcygeus - Attachments

A

attachments- from ischium & tendinous arch of obturator internus to coccyx & midline raphe

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12
Q

Iliococcygeus - Actions and Innervation

A

action- support pelvic viscera
innervation- levator ani nerve (S4), inferior rectal nerve (pudendal S3-4), coccygeal plexus

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13
Q

Pubococcygeus - Attachments

A

attachments- pubis & tendinous arch of obturator internus to coccyx & midline raphe & walls of prostate or vagina

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14
Q

Pubococcygeus - Actions and Innervation

A

actions- support pelvic viscera & compress vagina
innervation- levator ani nerve (S4), inferior rectal nerve (pudendal S3-4), coccygeal plexus

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15
Q

Puborectalis - Attachments

A

attachments- pubis & wall of rectum

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16
Q

Puborectalis - Actions and Innervation

A

actions- maintain fecal continence
innervation- levator ani nerve (S4)

17
Q

Bulbospongiosus - Actions and Innervation

A

actions- in male empties urethra, maintains erection & contracts during ejaculation; in female constricts vaginal orifice & contributes to erection of clitoris
innervation- perineal branch of the pudendal nerve

18
Q

Ischiocavernosus - Actions and Innervation

A

actions- compresses crus during erection
innervation- perineal branch of the pudendal nerve

19
Q

External anal sphincter - Actions and Innervation

A

actions- closes anal canal & fixes perineal body
innervation- inferior rectal branch of the pudendal nerve

20
Q

External urethral sphincter - Attachments

A

attachments- surrounds urethra

21
Q

External urethral sphincter - Actions and Innervation

A

actions- compresses urethra
innervation- perineal branch of the pudendal nerve

Clinical Anatomy 2 - Abdomen (2 decks)

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