LAB17: Perineum and Pelvis

Question 1

pelvis is formed by?

Answer 1

2 hip bones (oscoxae) joined by sacrum

Question 2

each hip bone formed by?

Answer 2

pubis, ischium, ilium

join at acetabulum

Question 3

what connects hip bone-sacrum?

Answer 3

pelvic ligament:

1) sacrospinous ligament
2) sacrotuberous ligament

Question 4

what do sacrospinous ligament and sacrotuberous ligament do anatomically?

Answer 4

convert greater and lesser sciatic notches into greater and lesser sciatic foramina

Question 5

sacroiliac articulation is what kind of joint?

Answer 5

synovial joint

Question 6

what is wider in females than males in the pelvic region?

Answer 6

subpubic angle of pubic arch

Question 7

which pelvis is true/fales?

Answer 7

greater is fale, lesser is true

Question 8

what divides pelvis into greater/lesser or fales/true?

Answer 8

pelvic inlet

Question 9

what surroundes the membranous urethra?

Answer 9

external urethral sphincter muscle

Question 10

parts of the urethra

Answer 10

prostatic
membranous
spongy

Question 11

where does ductus deferences originate/go?

Answer 11

from anterior abdominal wall; enters deep inguinal ring later to inferior epigastric vessels

Question 12

how does ductus deferens cross ureter?

Answer 12

superior

Question 13

what forms the ejaculatory duct

Answer 13

duct of seminal vesicle + ductus deferens

Question 14

where does ejaculatory duct empty

Answer 14

into prostatic urethra on seminal colliculus

Question 15

potential space re: urinary bladder?

Answer 15

rectopubic space (prevesical space), between pubic symphysis and urinary bladder

Question 16

parts of urinary bladder

Answer 16

apex, body, fundus, neck

Question 17

surfaces of urinary bladder

Answer 17

superior, posterior, inferolateral

Question 18

where do kidney stones get lodged?

Answer 18

where ureter passes through to urinary bladder

Question 19

vertebral level where rectum begins?

Answer 19

3rd sacral vertebra

Question 20

where does rectum bend

Answer 20

ampulla of the rectum; bends into anorectal flexure; continuous w/ anal canal

Question 21

what contains superior rectal artery/vein?

Answer 21

anal columns, longitudinal ridges of mucosa in proximal part of anal canal

Question 22

what is pectinate line

Answer 22

irregular line formed by anal valves

Question 23

name the anal sphincter muscles

Answer 23

external anal sphincter m

internal anal sphincter m

Question 24

branches of anterior division of internal iliac a

Answer 24

umbilical a., obturator a., inferior vesical a., middle rectal a., internal pudendal a., inferior gluteal a

Question 25

branches of posterior division of internal iliac a

Answer 25

iliolumbar a., lateral sacral a., superior gluteal a.

Question 26

which is dorsal surface of penis

Answer 26

surface closest to anterior abdominal wall when penis is erect

Question 27

what does dartos fascia of penis contain

Answer 27

superficial dorsal vessels pf penis

Question 28

what is in deep fascia of penis (buck’s fascia)

Answer 28

corpus spongiosum, corpus cavernosum, deep dorsal v, dorsal a of penis, dorsal nerve of penis

Question 29

what does superficial dorsal vein of penis drain into?

Answer 29

superficial external pudendal vein, which drains > great saphenous vein

Question 30

blood supply to dorsal penis

Answer 30

dorsal artery of penis; terminal branch of internal pudendal artery