male pelvis and perineum video q and a

Question 1

bones of pelvis

Answer 1

sacrum; 2 coxal bones, made of ilium, ischium, pubis;

Question 2

hole in articulated pelvis

Answer 2

obturator foramen

Question 3

pelvis is latin for?

Answer 3

basin

Question 4

pelvis is axial or appendicular?

Answer 4

both: Sacrum-axial; coxal bones-appendicular

Question 5

feature of male pelvis?

Answer 5

sharp pubic arch; woman’s is wide, open

Question 6

ligament from pubis-ilium

Answer 6

inguinal ligament

Question 7

what is inguinal ligament from

Answer 7

end of aponeurosis of external abdominal oblique m.,

Question 8

what kind of joint is pubic symphysis

Answer 8

symphysis

Question 9

rami of pelvis

Answer 9

pubic ramus, ischio-pubic ramus

Question 10

what do we sit on?

Answer 10

ischial tuberosity

Question 11

ligaments of pelvis

Answer 11

sacro-tuberos ligament; deep to that is sacro-spinus ligament

Question 12

what do sacro-tuberos ligament and sacro-spinus ligament form

Answer 12

greater sciatic foramen with sciatic notch; lesser sciatic foramen

Question 13

where is pudendal nerve

Answer 13

goes through greater sciatic foramen and then to lesser sciatic foramen

Question 14

greater pelvis is?

Answer 14

aka false pelvis; between iliac blades, above level of pelvic brim

Question 15

lesser pelvis is?

Answer 15

aka true pelvis, area below pelvic brim

Question 16

if divide perineum in half from tuberosity to tuberosity, what is posterior / anterior area?

Answer 16

posterior: anal triangle; anterior: urogenital triangle

Question 17

make up of pelvic diaphragm

Answer 17

levator ani and cocygeal muscles; separates pelvic cavity above from perineal region below

Question 18

make up of urogenital diaphragm

Answer 18

layer of pelvis separating deep perineal sac from upper pelvis

Question 19

abdominal aorta branches to

Answer 19

2 common iliacs > internal and external iliac

Question 20

femoral artery branches from?

Answer 20

external iliac

Question 21

branches of internal iliac?

Answer 21

superior gluteal artery; intferior gluteal artery; vesicular branches > bladder; internal pudendal a.; testicular artery;

Question 22

what is posterior- ureter or testicular artery/vein?

Answer 22

ureter

Question 23

what supplies blood to bladder?

Answer 23

vesicular branches of internal iliac

Question 24

erectile bodies of penis

Answer 24

2 derived from corpus cavernosum, on sides; 1 on underside is corpus spongiosum

Question 25

what is corpus spongiosum a continuation of

Answer 25

bulb of penis

Question 26

what is in middle of corpus spongiosum?

Answer 26

opening for the urethra

Question 27

what is in dorsum of penis

Answer 27

dorsal vein of penis

Question 28

ductus deferens runs where?

Answer 28

from prostate, into spermatocord, to testes

Question 29

sensory innervation of scrotum

Answer 29

anterior surface: ilioinguinal n; anterolaterally: genital branch of genitofemoral nerve; posterior: perineal branch of pudendal nerve (L1-S4 among all)

Question 30

butt muscles

Answer 30

gluteus maximus m; gluteus medius m

Question 31

structures that emerge above piriformis m

Answer 31

superior gluteal vessels; fibers of gluteus minimus m.

Question 32

structures that emerge below piriformis m

Answer 32

sciatic nerve!

Question 33

largest nerve in body?

Answer 33

sciatic nerve!

Question 34

sciatic nerve made of

Answer 34

large common peroneal n., tibial n.

Question 35

sciatic nerve root values

Answer 35

L4, L5, S1, S2, S3

Question 36

greater sciatic foramen- what comes out?

Answer 36

sciatic nerve, inferior gluteal vessels and nerve

Question 37

pudendal nerve, artery - where do they come out of

Answer 37

cover of piriformus muscle, go underneat sacrotuberous ligament, over the sacrospinous ligament, come in to the lateral portion of ischirectal fossa, thru the pudendal canal

Question 38

3 major branches of pudendal nerve

Answer 38

first: inferior rectal nerve; perineal branches; dorsal nerve to the penis/clitoris

Question 39

what is ischiorectal fossa usually full of

Answer 39

fat, to allow for stretch during pooping

Question 40

what come in to ischiorectal fossa?

Answer 40

muscles of pelvic diaphragm: levator ani, coxyggeus muscles; pudenal nerve vein and artery (ALONG LATERAL WALL); inferior rectal nerve

Question 41

where is anterior recess of ischiorectal fossa

Answer 41

lies just above urogenital diaphragm

Question 42

what is within anterior recess of ischiorectal fossa

Answer 42

deep transverse perineal muscle, sphincter urethre m; bulbourethral gland; perineal branches

Question 43

what is within superficial pouch

Answer 43

bulb of the penis; superficial transverse perineal muscle; continuation of penis, bulb, covered by bulbospongiosus muscle; ischiocavernosus muscle;