Pelvic Cavity Dissection #1

Front 1

rectovesical pouch

Back 1

central peritoneum descends a short distance down the posterior surface of the bladder and then reflects superiorly onto the anterior surface of the inferior rectum

Front 2

R: pubic symphysis and bladder

Back 2

Bladder is directly posterior

Front 3

The superior vesical and superior gluteal arteries are branches of which artery?

Back 3

internal iliac artery

Front 4

R: obturator nerve and psoas

Back 4

nerve is medial to psoas

Front 5

What muscle covers the obturator membrane?

Back 5

Obturator internus (except for a gap for the obturator canal)

Front 6

R: ureter and common iliac artery

Back 6

ureter is anterior

Front 7

What is the only structure that passes between the ureter and peritoneum? (male)

Back 7

ductus deferens

Front 8

R: prostate and bladder

Back 8

prostate is inferior to bladder

Front 9

R: seminal vesicles and bladder

Back 9

SV are posterior

Front 10

R: ampulla of ductus deferens and bladder

Back 10

ampulla is posterior

Front 11

How is the ovary attached to the uterus?

Back 11

Via the ovarian ligament and the suspensory ligament (convey ovarian vessels from side wall)

Front 12

points of pelvis inlet

Back 12

from sacral promontory to pubic tubercle

Front 13

points of pelvis outlet

Back 13

tip of coccyx to pubic symphysis

Front 14

what links pubic bones anteriorly?

Back 14

pubic symphysis (cartilaginous disk that won't appear on x-ray)

Front 15

what divides the sciatic foramen into greater and lesser spaces?

Back 15

sacrospinous ligament

Front 16

attachments of sacrotuberous ligament

Back 16

ischium to tuberosities

Front 17

which is more anterior: sacrospinous ligament or sacrotuberous?

Back 17

sacrospinous

Front 18

what muscles form the pelvic walls?

Back 18

obturator internus and piriformis

Front 19

which muscles form the pelvic floor (i.e. the pelvic diaphragm)?

Back 19

levator ani and coccygeus

Front 20

what ligament does the coccygeus overlie?

Back 20

sacrospinous

Front 21

tendinous arch over levator ani

Back 21

thickening of fascia over obturator internus muscle that serves as an attachment for part of the levator ani

Front 22

what muscles cover the greater sciatic foramen?

Back 22

piriformis and coccygeus

Front 23

is the lesser sciatic foramen in the pelvis?

Back 23

no, b/c it is below the pelvic floor

Front 24

what nerves make of the sacral plexus?

Back 24

L4, L5, S1-S3

Front 25

what muscle does the sacral plexus trunk overlie?

Back 25

piriformis muscle

Front 26

what do the anterior and posterior contributions of the sacral plexus form?

Back 26

the sciatic nerve

Front 27

what does the hypogastric plexus overlie? what does it innervate?

Back 27

overlies the bifurcation of the aorta and goes on to eventually split at the level of the rectum and innervate it

Front 28

where do vesical and prostatic venous plexi drain?

Back 28

to iliac veins but there is communication with the vertebral venous plexus (facilitates metastases to brain)

Front 29

what vessels supply the rectum and anal canal?

Back 29

superior, middle, and inferior rectal arteries (forms porto-caval anastamosis)

Front 30

what supports the bladder?

Back 30

pubovesical or puboprostatic ligaments

Front 31

what forms the trigone of the bladder?

Back 31

ureteral openings and urethra

Front 32

R: ductus deferens, seminal vescicles, prostate

Back 32

most superior: ductus
middle: seminal vesicles
most inferior: prostate

Front 33

R: seminal vesicles & ductus to bladder

Back 33

both are posterior

Front 34

what forms the ejaculatory duct?

Back 34

ductus deferens and seminal vesicles

Front 35

where does the ejaculatory duct drain?

Back 35

through the prostate into the prostatic urethra

Front 36

what innervates the prostatic sphincter?

Back 36

hypogastric plexus with symp fibers

Front 37

in the female pelvis, what does the broad ligament cover?

Back 37

it is a double layer of peritoneum that drapes over the uterine tubes, ovaries, and ovarian ligaments and is continuous with the peritoneum of the side walls of the pelvis

Front 38

R: ovaries to uterus

Back 38

ovaries are posterior to uterus

Front 39

R: in female, ureter and uterine vessels

Back 39

ureter passes inferior to vessels at level of the cervix

Front 40

What is the cardinal ligament?

Back 40

thickening of endopelvic fascia in the base of the broad ligament that supports and transmits the uterine vessels.

Front 41

uterosacral ligament

Back 41

supports the uterus; attaches the cervix to the sacrum

Front 42

round ligament

Back 42

remnant of the gubernaculum; runs from the fundus of uterus through deep inguinal ring to the labia

Front 43

ovarian ligament

Back 43

remnant of the gubernaculum; attaches the ovary to the fundus

Front 44

suspensory ligament

Back 44

contains ovarian vessels; runs from the side wall of the pelvis to the ovary

Front 45

R: vagina and rectum

Back 45

rectum is posterior

Front 46

WLAN

Back 46

wireless local area network

Front 47

what covers the posterior fornix?

Back 47

peritoneum...closely related to peritoneal cavity

Front 48

all pelvic viscera are supplied by the internal iliac arteries...except?

Back 48

the ovaries

Front 49

which arteries anastomose within the walls of the uterus and vagina?

Back 49

arteries of the abdomen, pelvis, and perineum

Front 50

primary lymphatic drainage of female genital organs

Back 50

-of ovaries, uterine tubes and fundus of uterus directly to lateral aortic nodes.
-of uterus, cervix and upper vagina to internal iliac, external iliac and sacral nodes.
-of lower vagina to superficial inguinal nodes DSF

Front 51

what exterior features does the rectum lack (that is characteristic of the colon)?

Back 51

a mesentery, teniae coli, haustra

Front 52

vertebral level of ano-rectal jxn

Back 52

S3

Front 53

what does the pectinate line of the ano-rectal canal differentiate?

Back 53

the difference between endoderm derived part of the gut tube and ectoderm