~Z11 - Male Pelvic Viscera

Front 1

the os coxa bone is made up of the fusion of what 3 bones?

Back 1

-ilium
-ischium
-pubic

Front 2

name the three "lines" that form the pelvic brim and what bones they're on

Back 2

-sacral promontory (posteriorly)
-arcuate line on ilium
-pectinate line on pubis (anteriorly)

Front 3

where do the false and true pelvis' lie in relation to the pelvic brim?

Back 3

true(lesser) pelvis = below pelvic brim
false(greater) pelvis - above pelvic brim

Front 4

what ligament forms covers the greater sciatic notch to form the greater sciatic foramen? the lesser sciatic notch and foramen?

Back 4

greater: sacrospinous ligament

lesser: sacrotuberous ligament

Front 5

what foramen and in what order does the pudendal n. go through?

Back 5

the greater --> lesser sciatic foramen

Front 6

what 2 mm form the lateral walls of the pelvis?

Back 6

the obturator internus and piriformis m.

Front 7

what 2 mm form the floor of the pelvis?

Back 7

levator ani and coccygeus mm

Front 8

name the four main mm of the pelvis

Back 8

the levator ani and coccygeus mm make up the floor of the pelvis and the piriformis and obturator internus mm's make up the lateral walls

Front 9

which 2 mm of the pelvis exit through a foramen? which m. exits through which foramen?

Back 9

obturator internus m. - lesser sciatic foramen

piriformis m. - greater sciatic foramen

Front 10

Piriformis m

OIAN

Back 10

O: sacrum -- passes laterally to exit through the greater sciatic forament
I: great trochanter of the femur
A: abduct and laterally rotate the thigh
N: SW1-S2

Front 11

Obturator internus m.

OIAN

Back 11

O: obturator membrane and brim of the obturator foramen -- passes inferiorly to exit the pelvis through the lesser sciatic foramen

Front 12

name the 10 main branches of the internal iliac a.

Back 12

1) superior gluteal a., 2) inferior gluteal a., 3) iliohypogastric a., 4) lateral sacral a., 5) uterine a., 6) umbilical a., 7) obturator a., 8) superior vesical a., 9) internal pudendal a., 10) inferior vesical a.

Front 13

branches of the internal iliac:

__________ a. goes to the iliac fossa and deep lumbar region

Back 13

iliolumbar a.

Front 14

branches of the internal iliac:

__________ a. goes to structures in the sacral canal

Back 14

lateral sacral a.

Front 15

branches of the internal iliac:

__________ aa. go to the gluteal region (2)

Back 15

superior gluteal a. & inferior gluteal a.

Front 16

branches of the internal iliac:

__________ a. goes to the perineum, gives off the inferior rectal aa., and becomes the perineal a.

Back 16

the internal pudendal a.

Front 17

branches of the internal iliac:

__________ a. goes to the urinary bladder, seminal vesicle, prostate, and vas deferens

Back 17

inferior vesical a.

Front 18

branches of the internal iliac:

__________ a. to superior portion of urinary bladder and forward as the median umbilical ligament; terminates as the superficial vesical a.

Back 18

umbilical a.

Front 19

branches of the internal iliac:

__________ a. goes to the region of the obturator canal

Back 19

obturator a.

Front 20

branches of the internal iliac:

__________ a. goes to the rectum

Back 20

middle rectum comes directly from internal iliac a.

Front 21

branches of the internal iliac:

__________ a. goes to the uterus, gives off the vaginal a. inferiorly and anastomoses with the ovarian a.

Back 21

uterine a.

Front 22

the ___________ extends from the rectosigmoidal junction (S3) to the anal canal

Back 22

the rectum

Front 23

the the rectum or anal canal longer?

Back 23

rectum

Front 24

is the internal anal sphincter composed of longitudinal fibers or of circular fibers?

Back 24

circular - it's the termination of the inner m layer of the intestines

Front 25

is the corrugator cutis ani m composed of longitudinal or circular fibers?

Back 25

longitudinal - it's the termination of the outer longitudinal layer of intestines (aka taenia coli)

Front 26

_______ are formed by veins deep to mucous membranes in the area between the rectum and anus, and ________ are the depressions between the columns

Back 26

anal columns

anal sinuses

Front 27

the __________ line is composed of the mucous membrane valves connecting the anal columns

Back 27

pectinate

Front 28

name the aa or the rectum and where they originate from

Back 28

superior <-- IMA
middle <-- internal iliac a.
inferior <-- internal pudendal a.

Front 29

name the 3 big IDing factors of the large intestine

Back 29

haustra,
taenia coli
epiploic appendages

Front 30

the pelvic splanchnic nn are composed of what type of fibers? what spinal segements do they come from?

Back 30

PARASYMAPTHETIC

S2,3,4 keeps your stuff off the floor

Front 31

name the veins of the rectum and what they drain

Back 31

inferior rectal --> drains distal to the pectinate line
middle rectal --> drains lower 1/3 of rectum
superior rectal --> from anal column superiorly to the IMV (internal hemorrhoids)

Front 32

the ________ lig runs from the apex of the bladder to the umbilicus

Back 32

median umbilical ligament

Front 33

the _____________ is the smooth area between openings of the urethra and ureters

Back 33

trigone of the urinary bladder

Front 34

what is the arterial supply to the bladder? (2)

Back 34

superior and inferior vesical aa.

Front 35

what is the venous drainage of the bladder to the IVC?

Back 35

vesical venous plexus --> prostatic venous plexus --> internal iliac v. --> IVC

Front 36

autonomics of bladder: for micturition
-parasymp stimulation from _______ to brain via ____________
-they are inhibitory to ___________ and motor to _______

Back 36

-from stretch receptors in the body wall
-to brain via pelvic splanchnic nn.
-back through the PSn to be
-inhib: internal urethral sphincter
-motor: detrusor m.

Front 37

autonomics of bladder: for micturition
-sympathetic down to what spinal level? to innervate what?

Back 37

-T11-L2
-external urethral sphincter

Front 38

what joins with duct from seminal vesicle to from the ejaculatory duct? where does it open to?

Back 38

the ductus deferens

opens to the prostatic urethra

Front 39

what produces alkaline fluid that mixes with but does not form sperm?

Back 39

seminal vesicles

Front 40

______________ has openings for ejaculatory ducts and prostatic ducts

Back 40

urethral crest (

Front 41

the _____________ ducts open into the prostatic sinus alongside of the urethral crest

Back 41

prostatic ducts

Front 42

the posterior surface of the prostate is separated from the rectum by ____________ (_________________).
Significance?

Back 42

rectovesicle fascia (Denonvilliers)
presence in surgery indicates back of prostate and stopping here prevents entering rectum

Front 43

the upper smaller portion of the posterior prostate, above the depression on the posterior surface where the ejaculatory ducts enter is the _____________ lobe

Back 43

middle lobe

Front 44

the _______ lobe enlarges the most and obstructs the internal urethral orifice

Back 44

middle

Front 45

the _____________ lobe is smaller and superior posteriorly while the _______________ lobes are larger and inferior and separated by a median furrow.

Back 45

middle lobe = smaller, superior
L and R lateral lobes = larger, inferior

Front 46

prostatic ducts open into the prostatic sinus on wither side of the ____________

Back 46

seminal colliculus

Front 47

the _____________ is enveloped by a thin, fibrous capsule, which is enveloped by a plexus of veins (Batson's plexus)

Back 47

prostate

Front 48

T/F:
Batson's plexus can empty into the vertebral plexus, and thus, prostate cancer can be linked to brain cancer

Back 48

T

Front 49

the prostate empties lymphatics into which nodes?

Back 49

internal iliac and sacral lymph nodes

-one vessel from posterior surface ends in external iliac nodes

Front 50

prostatic innervation:
parasymp nn. and fxn
symp nn. and fxn

Back 50

parasymp: pelvic splanchnic nn (S2-S4) "pointing" - erection
symp: inferior hypogastric plexus "shooting" - ejaculation

Front 51

T/F

prostate surgery may lead to sexual dysfunction

Back 51

true