Lecture 6: Pelvis I

Question 0

anasthetic for vaginal delivery and surgery, injection made where pudendal n. crosses ischial spine, transvaginal or transcutaneous

Answer 0

pudendal block

Question 1

passes behind ischial spines, from ventral rami of S2, S3, S4, nerve supply of pelvic floor

Answer 1

pudendal nerve

Question 2

subpubic angle <90, heart shaped inlet, small outlet, ischial spines point inward

Answer 2

male pelvis

Question 3

subpubic angle >90, round inlet, large outlet

Answer 3

female pelvis

Question 4

when pelvic joints and ligaments relax from sex hormones and relaxin

Answer 4

pregnancy

Question 5

ligaments among the strongest in the body, cause of back pain

Answer 5

sacroiliac ligaments

Question 6

support pelvic viscera, create 90 degrees between rectum and anal canal (for continence), raises to increase intra-abdominal pressure

Answer 6

pelvic floor muscles (levator ani, pelvic diaphragm)

Question 7

specific muscle that creates 90 degrees between rectum and anal canal (for continence)

Answer 7

pubo rectalis muscle

Question 8

when weak pelvic floor muscles alter the position of the neck of the bladder or urethra

Answer 8

urinary stress incontinence

Question 9

below pelvic floor, diamond shaped area

Answer 9

perineum

Question 10

anterior, posterior, and lateral borders of perineum

Answer 10

pubic symphysis, sacrum, ischial tuberosities

Question 11

2 triangles of perineum

Answer 11

anal, urogenital

Question 12

deep to superficial perineum

Answer 12

superior fascia of UG diaphragm, UG diaphragm muscle, inferior fascia of UG diaphragm, roots of external genitalia, superficial fascia, skin

Question 13

roots of external genitalia

Answer 13

2 crura (ischiocavernosus), bulb (bulbospongeosus)

Question 14

muscle across perineal space, anterior to anus

Answer 14

superficial transverse perineal muscle

Question 15

between vagina and anal canal, connective tissue where 8 muscles converge

Answer 15

perineal body

Question 16

incision to perineal body to prevent tearing during childbirth

Answer 16

episiotomy

Question 17

UG diaphragm, membranous urethra, bulbourethral glands

Answer 17

male deep perineal pouch

Question 18

erectile structures that form penis, urethra

Answer 18

male superficial perineal pouch

Question 19

UG diaphragm, urethra, vagina

Answer 19

female deep perineal pouch

Question 20

erectile structures of clitoris, bartholin’s glands

Answer 20

female superficial perineal pouch

Question 21

mother artery of the pelvis

Answer 21

internal iliac artery

Question 22

arteries of posterior division of internal iliac artery

Answer 22

iliolumbar, lateral sacral, superior gluteal (large)

Question 23

arteries of anterior division of internal iliac artery (8)

Answer 23

umbilical, superior vesicle, inferior vesicle (vagina), middle rectal, obturator, internal pudendal, inferior gluteal, uterine

Question 24

path of lymph from superficial inguinal nodes

Answer 24

superficial inguinal nodes, deep inguinal nodes, external iliac nodes, common iliac nodes, aortic nodes

Question 25

ventral rami that form sacral plexus

Answer 25

L4-S4

Question 26

end nerves of sacral plexus

Answer 26

sciatic, posterior femoral cutaneous, pudendal