Pelvic cavity anatomy

Question 1

sacrotuberous ligament

Answer 1

in dog
from sacrum to ischial tuberosity
lateral borders of pelvic cavities

Question 2

boundaries of pelvic inlet

Answer 2

cranial: promontory of sacrum
shaft of ilium
pectin of pubis

Question 3

transverse diameter of pelvic cavity

Answer 3

greatest distance between arcuate lines of ilium

Question 4

conjugate diameter of pelvis

Answer 4

distance between sacral promontory and pecten of pubis

Question 5

perineal region

Answer 5

male: from anus to scrotum
female: from anus to vulva
anal and urogenital regions

Question 6

coccygeus musle

Answer 6

part of pelvic diaphragm

Question 7

levator ani

Answer 7

part of pelvic diaphragm

Question 8

demarcation between descending colon and rectum

Answer 8

just level of pelvic inlet, no physical demarcation

Question 9

urinary bladder
empty vs full

Answer 9

lies directly on pelvic floor
empty: thick wall feels solid
full: thin wall may rupture if blocked

Question 10

urinary bladder parts

Answer 10

apex (cranial)
body
neck- fixed

Question 11

intramural part of ureter

Answer 11

runs in the wall of the bladder towards neck (caudal)
prevents backflow of urine to kidney

Question 12

urachus of bladder

Answer 12

top of apex
urine entered here in fetus
closed

Question 13

urinary bladder trigone

Answer 13

smooth triangular region on inside
on dorsal internal wall of neck
boundaries: 2 ureter openings and internal urethral orifice

Question 14

ligaments of the bladder

Answer 14

2 lateral ligaments
round ligament (top of lateral ligament) was umbilical artery
median ligament- ventral surface of bladder to pubis, supports urachus

Question 15

pubovesicle pouch

Answer 15

between pubic bone and bladder

Question 16

vesicogential pouch

Answer 16

between genitalia and bladder

Question 17

rectogenital pouch

Answer 17

between genitalia and rectum

Question 18

pelvic urethra in male

Answer 18

extends from bladder to pelvic outlet
widest diameter of urethra
has pre, post, and prostatic urethra
thick urethralis muscle
no prosthetic urethra in dogs

Question 19

penile urethra

Answer 19

part of urethra in penis

Question 20

parts of urethra in female

Answer 20

only pelvic urethra
shorter

Question 21

ductus deferens

Answer 21

continuation of duct of epididymis
terminates in pelvic urethra
white wire-like threads

Question 22

male accessory genital glands

Answer 22

vary with species
prostate in all species

Question 23

prostate gland

Answer 23

surrounds neck of bladder
pelvic symphysis is ventral and rectum is dorsal

Question 24

bulbourethral gland

Answer 24

in male cats

Question 25

cat vs dog prostate

Answer 25

dog: prostate completely surrounds urethra
cat: does not completely surround (bi lobed)

Question 26

prostatic disease

Answer 26

causes constipation and dysuria (painful urination)
digital palpation via rectum
castration reduces size of prostate

Question 27

pregnant vs non pregnant uterus location

Answer 27

pregnant uterus can move into abdominal cavity

Question 28

rectal palpation in dogs

Answer 28

for prostate exam
finger palpation