Pelvic Bones and Cavity lecture ii

Question 1

the sacrum consists of _ fused verebrae

Answer 1

5

Question 2

sacrum: superior articular processes their facets articulate with _ vertebra

Answer 2

their facets articulate with L5 vertebra

Question 3

sacrum: auricular surface forms the _ part of the sacroiliac joint btwn _ and _; is somewhat _-shaped and covered with _

Answer 3

on lateral side; forms the synovial part of the sacroiliac joint btwn the sacrum and ilium; it is somewhat ear-shaped and covered with hyaline cartilage

Question 4

pelvic inlet has _ opening into the _ pelvis

Answer 4

superior opening into the lesser (true) pelvis

Question 5

t/f: greater pelvis is part of the pelvic cavity

Answer 5

FALSE; is NOT part of the pelvic cavity! only lesser pelvis is

Question 6

pelvic outlet _ opening into/exit from the _ pelvis

Answer 6

inferior opening into/exit from the lesser pelvis

Question 7

lesser pelvis (pelvic cavity) is the space btwn _ and _

Answer 7

space btwn pelvic inlet and pelvic outlet

Question 8

pelvic brim is the bony edge of rim surrounding the _

Answer 8

bony edge of rim surrounding the pelvic inlet

Question 9

joints of the pelvic girdle (2)

Answer 9

1. pubic symphysis

2. sacroiliac

Question 10

pubic symphysis btwn bodies of _ and _ bones

Answer 10

btwn bodies of rt and lt pubic bones

Question 11

pubic symphysis classification:

Answer 11

cartilaginous; symphysis (secondary cartilaginous)

Question 12

sacroiliac btwn _ and _

Answer 12

(2 of these) btwn sacrum and ilium

Question 13

sacroiliac classification:

Answer 13

partly synovial; plane and partly fibrous; syndesmosis

Question 14

ligaments of the pelvic girdle: the _ and _ ligaments, respectively, convert the 2 sciatic notches into the greater sciatic foramen and lesser sciatic foramen

Answer 14

sacrospinous and sacrotuberous ligaments respectively

Question 15

the pelvic outlet is formed by the:

Answer 15

by the:

• inferior tip of the coccyx
• inferior edges of both ischial tuberosities
• and inferior edge of the pubic symphysis joint

Question 16

pelvic space; space _ to the pelvic brim btwn the _ of the two ilia

Answer 16

space superior to the pelvic brim btwn the alae of the two ilia

Question 17

the 2 conjoined ischiopubic rami form the _

Answer 17

pubic arch (an upside down V)

Question 18

comparison of male and female bony pelves: pelvic inlet (superior pelvic aperture)

Answer 18

male: heart-shaped, narrow
female: oval and rounded; wide

Question 19

comparison of male and female bony pelves: pelvic outlet (inferior pelvic aperture)

Answer 19

male: comparatively small
female: comparatively large

Question 20

comparison of male and female bony pelves: pelvic arch and subpubic angle

Answer 20

male: narrow (<70 degrees)
female: wide (>80 degrees)

Question 21

abdominal aorta branches: testicular artery travels through _ and inside _ into _ to supply testes

Answer 21

(male) travels through inguinal canal and inside spermatic cord into scrotum; supplies testes

Question 22

abdominal aorta branches: ovarian artery travels through _ to supply ovary

Answer 22

(female) travels through suspensory ligament; supplies ovary

Question 23

abdominal aorta branches: inferior mesenteric artery supplies part of _

Answer 23

supplies part of LI

Question 24

abdominal aorta branches: median sacral artery arises from _ just barely proximal to its bifurcation; supplies (4)

Answer 24

arises from aorta just barely proximal to its bifurcation; supplies some lumbar vertebrae, sacrum, coccyx, and (minor contribution to) rectum

Question 25

abdominal aorta divides into the _ and _ arteries

Answer 25

rt and lt common iliac arteries

Question 26

each common iliac artery divides into an _ and _ artery

Answer 26

internal and an external iliac artery

Question 27

arteries of the external iliac artery: (2)

Answer 27

deep circumflex artery and inferior epigastric artery

Question 28

deep circumflex artery branch of _ artery before it leaves abdomen to become _ artery

Answer 28

branch of external iliac artery before it leaves abdomen to become femoral artery

Question 29

inferior gastric artery branch of _ artery before it leaves _

Answer 29

branch of external iliac artery before it leaves abdomen

Question 30

internal iliac artery descends a bit and divides into an _ and _ division

Answer 30

anterior division and a posterior division

Question 31

t/f: anterior division of the internal iliac artery gives off many branches

Answer 31

true

Question 32

obturator artery branch of _ artery; exits pelvic cavity through _, supplies (4)

Answer 32

branch of anterior division of internal iliac artery; exits pelvic cavity through obturator foramen, supplies: pelvic muscles, ilium, head of femur, and thigh muscles

Question 33

inferior vesicle artery branch of _ ; supplies _

Answer 33

(males) branch of anterior division of internal iliac artery; supplies prostate gland

Question 34

uterine artery branch of _; supplies _ and _

Answer 34

(females) branch of anterior division of internal iliac artery; supplies uterus and vagina

Question 35

middle rectal artery branch of _ artery; supplies _ and, in males, _

Answer 35

branch of anterior division of internal iliac artery; supplies rectum and, in males, seminal vesicles

Question 36

internal pudendal artery branch of _ artery; descends to exit the pelvic cavity through the _, loops around the _ spine and enters the perineum to supply, among other things, the _ or _

Answer 36

branch of anterior division of internal iliac artery; descends to exit the pelvic cavity through the greater sciatic foramen, loops around the ischial spine, and enters the perineum to supply, among other things, the penis or clitoris

Question 37

inferior gluteal artery branch of _ artery; exits pelvic cavity through _, supplies the muscles of _ and posterior _

Answer 37

branch of anterior division of internal iliac artery; exits pelvic cavity through greater sciatic foramen, supplies the muscles of skin of the buttocks and posterior thigh

Question 38

posterior division of the internal iliac artery gives off these 3 branches

Answer 38

1. iliolumbar artery 2. lateral sacral arteries 3. superior gluteal artery

Question 39

iliolumbar artery travels to the _, then divides to supply these 3 muscles

Answer 39

travels to the iliac fossa, then divides to supply the iliacus, psoas major, and quadratus lumborum muscles

Question 40

lateral sacral arteries send branches through the _, supply the _ muscles and _

Answer 40

the anterior sacral foramina, supply the erector spinae muscles and spinal meninges

Question 41

superior gluteal artery supplies

Answer 41

gluteal muscles