Pelvis II

Question 1

largest nerve in the body, exits through greater sciatic foramen

Answer 1

sciatic n L4-S3

Question 2

the sciatic nerves is the combination of what two nerves

Answer 2

common peroneal (fibular) and tibial nerves

Question 3

nerve that runs with internal pudendal artery, exits through greater sciatic foramen, passes over the sacrospinous ligament into the lesser sciatic foramen to the ischiorectal fossa

Answer 3

pudendal n S2-4 (ventral rami)

Question 4

the pudendal nerve when passing over the sacrospinous ligament into the lesser sciatic foramen passes though ____ to the ischiorectal fossa

Answer 4

alcocks canal

Question 5

what are the 3 branches off the pudendal nerve

Answer 5

1. perineal n
2. dorsal nerve to penis or clitoris
3. inferior rectal n

Question 6

supplies the skin and muscles of perineum (between anus and genitalia)

Answer 6

perineal n

Question 7

supplies sensory to external genitalia

Answer 7

dorsal n to penis or clitoris

Question 8

external anal sphincter n

Answer 8

inferior rectal n

Question 9

supplies gluteus medius and minimus muscles

Answer 9

superior gluteal n L4-S1

Question 10

supplies gluteus maximus

Answer 10

inferior gluteal n L5-S2

Question 11

supplies obturator internus and gemellus superior

Answer 11

n to obturator internus L5-S2

Question 12

supplies piriformis

Answer 12

n to piriformis S1-2

Question 13

supplies skin of buttocks, medial and posterior thigh

Answer 13

posterior femoral cutaneous n S1-3

Question 14

motor to the adductors; sensory to inferior, medial thigh

Answer 14

obturator n L2-4

Question 15

small network from S4-5 that lies on the pelvic surface of the coccyx to supply the coccygeus, part of levator ani, sacrococcygeal joint, and skin over the coccygeal area

Answer 15

coccygeal plexus

Question 16

continue from the lumbar sympathetic trunks and joins to form the ganglion impar anterior to the coccyx (sympathetics to lower limbs)

Answer 16

sacral sympathetic trunks

Question 17

supplies parasympathetics to pelvic viscera via the inferior hypogastric and pelvic plexus

Answer 17

pelvic splanchnic nerves S2-4

Question 18

nerves to levator ani and coccygeus cord segments

Answer 18

S3-4

Question 19

lies just inferior to the aortic bifurcation and descends into the pelvis along the anterior sacrum as they become right and left hypogastric nerves

Answer 19

superior hypogastric plexus

Question 20

contain both p/s and sym fibers; supplies pelvic viscera

Answer 20

inferior hypogastric plexus

Question 21

IHP supplies what in males

Answer 21

prostate, seminal vesicles, inferolateral bladder

Question 22

IHP supplies what in females

Answer 22

cervix of uterus, lateral fornices of vagina

Question 23

gives branches to inferior epigastric artery and deep circumflex iliac artery

Answer 23

external iliac artery

Question 24

main branch which forms the lateral umbilical fold, anastomoses with the superior epigastric artery

Answer 24

inferior epigastric artery

Question 25

anastomoses with iliolumbar artery

Answer 25

deep circumflex artery

Question 26

artery that divides into an anterior and posterior division

Answer 26

internal iliac artery

Question 27

branches off posterior division; ascends anterior to SI joints to supply iliopsoas and cauda equina

Answer 27

iliolumbar artery

Question 28

branches off posterior division; travels down the anteromedial aspect of piriformis where it gives off branches that travel through the sacral foramina to supply bone, erector spinae, piriformis, and overlying skin

Answer 28

lateral sacral artery

Question 29

branch off posterior division; exits pelvis via greater sciatic foramen, found between the lumbosacral trunk and S1 ventral ramus

Answer 29

superior gluteal artery

Question 30

branch off anterior division; runs anteroinferiorly between urinary bladder and pelvis to give off _______

Answer 30

umbilical artery | superior vesical arteries

Question 31

supply the superior bladder and lower ureter, continuation dies then becomes medial umbilical ligament

Answer 31

superior vesical arteries

Question 32

branch off anterior division; runs anteroinferiorly on the obturator fascia between the nerve and vein and exits the pelvis via obturator canal to supply medial thigh

Answer 32

obturator artery

Question 33

what is the variability when it comes to the obturator artery

Answer 33

obturator artery exits external iliac then wraps around pubic ramus to obturator canal (pelvis fracture can cause harm)

Question 34

only seen in males; supplies the inferior bladder, inferior part of ureters, seminal vesicles, and prostate

Answer 34

inferior vesical artery

Question 35

only seen in females; passes anterior and superior to the ureter (homologue of artery to vas deferens)

Answer 35

uterine artery

Question 36

only seen in females; homologue of inferior vesical artery runs inferior to the ureter

Answer 36

vaginal artery

Question 37

passes inferolaterally, anterior to the piriformis and sacral plexus

Answer 37

internal pudendal artery

Question 38

supplies inferior rectum, prostate, vagina, and seminal vesicles

Answer 38

middle rectal artery

Question 39

found between S2 and S3 or splitting S2 nerve root

Answer 39

inferior gluteal artery

Question 40

drainage of venous blood from the pelvic region can either be ___ or ___

Answer 40

systemic or portal

Question 41

lateral sacral veins eventually drain into the _________

Answer 41

internal vertebral venous plexus (batson's channels)

Question 42

how does prostate cancer get to the spine

Answer 42

lateral sacral veins draining into internal vertebral venous plexus

Question 43

structure that carries sperm; ends by first enlarging to form an ampulla, then narrows to join the ducts of the seminal vesicles to from the _____

Answer 43

ductus deferens ejaculatory ducts (intraprostatic structure)

Question 44

secretes fructose and an alkaline substance that mixes with the sperm as they enter the ejaculatory ducts

Answer 44

seminal vesicles

Question 45

union between the duct of the seminal vesicle and the vas deferens

Answer 45

ejaculatory ducts

Question 46

dense walnut shaped gland located inferior to the bladder

Answer 46

prostate (3cm)

Question 47

what does the prostate secrete

Answer 47

prostate specific antigen, citric acid, and fibrinolysin

Question 48

pea sized glands that lie posterolaterally to the membranous urethra and have ducts that empty their musk like secretions into this part of the urethra

Answer 48

bulbourethral glands

Question 49

what prevents an erected penis from explosion

Answer 49

deep fascia

Question 50

what are the two "eyes" of the monkey face that perfuse the penis

Answer 50

corpus cavernosum

Question 51

what is the urethra sitting in within the penis

Answer 51

corpus spongiosum

Question 52

musculomembranous tube that extends from the vestibule to where it surrounds the cervix of the uterus

Answer 52

vagina

Question 53

recess around the cervix formed by the vagina is called

Answer 53

vaginal fornix

Question 54

what closely associates to the rectouterine pouch of douglas

Answer 54

posterior fornix of the vagina

Question 55

what is the innervation of the vagina

Answer 55

uterovaginal plexus of nerves; parasym innervates this organ and the uterus

Question 56

round superior aspect of the uterus

Answer 56

fundus of the uterus

Question 57

constricted inferior aspect just superior to the cervix

Answer 57

isthmus of the uterus

Question 58

cylindrical, narrow protrusion into the vagina

Answer 58

cervix

Question 59

what 3 layers line the uterine wall

Answer 59

1. perimetrium 2. endometrium 3. myometrium

Question 60

attaches ovaries to the uterus

Answer 60

ovarian ligament

Question 61

remnant of the gubernaculum along with the ovarian ligament, ends at labia majora

Answer 61

round ligament of the uterus

Question 62

double layer mesentery that attaches the uterus to the lateral walls of the pelvis

Answer 62

broad ligament

Question 63

mesentery of the broad ligament that surrounds the fallopian tube

Answer 63

mesosalpinx

Question 64

mesentery of the broad ligament that suspends the ovaries on the POSTERIOR aspect

Answer 64

mesovarium

Question 65

broad ligament that covers the ovarian artery and vein superiorly. attached to the lateral aspect of the ovary

Answer 65

suspensory ligaments

Question 66

what 4 parts are within the uterine tubes

Answer 66

1. isthmus 2. ampulla 3. infundibulum 4. fimbriae

Question 67

where does fertilization occur

Answer 67

ampulla of the uterus

Question 68

how are the ovaries attached to the uterus

Answer 68

ovarian ligament proper

Question 69

innervation of the ovaries

Answer 69

P/S: ovarian plexus from CN X and the inferior hypogastric plexus afferent: T10

Question 70

space between the rectum and the bladder; lowest point in the male pelvis

Answer 70

rectovesical pouch

Question 71

fat filled space between the bladder and pubic bone

Answer 71

retropubic space

Question 72

space between the bladder and the anteverted uterus

Answer 72

vesicouterine pouch

Question 73

pouch between the rectum and the uterus extending down to the POSTERIOR FORNIX OF THE VAGINA

Answer 73

rectouterine pouch of douglas

Question 74

what is the lowest point of the female pelvis

Answer 74

rectouterine pouch of douglas