ORG ANA: MOINA and TTR

Question 1

MOINA of piriformis

Answer 1

front of lateral mass of sacrum

greater trochanter of femur

sacral plexus

lateral rotator of femur at the hip joint

Question 2

MOINA of obturator internus

Answer 2

obturator membrane and adjoining part of hip bone

greater trochanter of femur

nerve to obturator internus

lateral rotator of femur at the hip joint

Question 3

MOINA of levator ani

Answer 3

body of pubis, fascia of obturator internus and spine of ischium

perineal and anococcygeal body, wall of prostate, vagina, rectum and anal canal

4th sacral nerve and pudendal nerve

support pelvic viscera; sphincter to anorectal and vagina

Question 4

MOINA of coccygeus

Answer 4

spine of ischium

lower end of sacrum and coccyx

4th-5th sacral nerve

assists levator ani to support pelvic viscera; flex coccyx

Question 5

MOINA of bulbospongiosus

Answer 5

perineal body

fascia of vestibular bulb

perineal branch of pudendal

sphincter of vagina and assists erection of clitoris

Question 6

MOINA of ischiocavernosus

Answer 6

ischial tuberosity

fascia covering corpus cavernosum

perineal branch of pudendal

assists in erection of clitoris

Question 7

MOINA of sphincter urethrae

Answer 7

pubic arch

surrounds urethra

perineal branch of pudendal

voluntary sphincter of urethra

Question 8

MOINA of superficial transverse perineal muscle

Answer 8

ischial tuberosity

perineal body

perineal branch of pudendal

fixes perineal body

Question 9

MOINA of deep transverse perineal muscle

Answer 9

ischial ramus

perineal body

perineal branch of pudendal

fixes perineal body

Question 10

identify if upper or lower half of anal canal

columnar epithelium

Answer 10

upper half

Question 11

identify if upper or lower half of anal canal

stratified squamous

Answer 11

lower half

Question 12

identify if upper or lower half of anal canal

has anal columns jointed together at lower ends by anal valves

Answer 12

upper half

Question 13

identify if upper or lower half of anal canal

no anal columns

Answer 13

lower half

Question 14

identify if upper or lower half of anal canal

autonomic hypogastric plexus - stretch

Answer 14

upper

Question 15

identify if upper or lower half of anal canal

somatic inferior rectal - pain, touch, temp and pressure

Answer 15

lower

Question 16

identify if upper or lower half of anal canal

superior rectal artery

Answer 16

upper

Question 17

identify if upper or lower half of anal canal

inferior rectal artery

Answer 17

lower

Question 18

identify if upper or lower half of anal canal

drains to pararectal nodes then inferior rectal nodes

Answer 18

upper

Question 19

identify if upper or lower half of anal canal

medial group of superficial inguinal nodes

Answer 19

lower

Question 20

MOINA OF subcutaneous part of external anal sphincter

Answer 20

encircles anal canal - no bones

no insertion

inferior rectal nerve and perineal branch of S4

w puborectalis forms voluntary sphincter of anal canal

Question 21

MOINA OF superficial part of external anal sphincter

Answer 21

perineal body

coccyx

inferior rectal nerve and perineal branch of S4

w puborectalis forms voluntary sphincter of anal canal

Question 22

MOINA of deep part of external anal sphincter

Answer 22

encircles anal canal - no bone

no insertion

inferior rectal nerve and perineal branch of S4

w puborectalis forms voluntary sphincter of anal canal

Question 23

MOINA of puborectalis

Answer 23

pubic bone

slings around anorectal junction

perineal branch of S4 and perineal branch of pudendal

w external anal sphincter forms voluntary anal sphincter

Question 24

identify if upper or lower half of anal canal

comes from entoderm

Answer 24

upper

Question 25

identify if upper or lower half of anal canal

ectoderm

Answer 25

lower