Lab 6 Urogenital and pelvis learning issues

Question 1

external iliac branches

Answer 1

deep circumflex iliac cr and cd branches;

deep femoral

Question 2

deep circumflex iliac cr and cd branch bifurcation

Answer 2

lateral iliac lymph nodes located at bifurcation into cr and cd branches

Question 3

deep circumflex iliac cd branches

Answer 3

seen with lateral cutaneous femoral nerve at flank of stifle with sub iliac LNs

Question 4

external pudendal

Answer 4

branches into cr artery of the penis (males) and supplies mammary gland (via cd superficial epigastric) (female)

courses through inguinal canal in both sexes

Question 5

internal iliac branches male

Answer 5

1. umbilical -> artery of ductus deferenes
2. Internal pudendal ->
   2a. prostatic artery
   2b. artery of bulb of the penis
3. cd gluteal
4. cr gluteal -> obturator -> middle artery of the penis

Question 6

internal iliac branches female

Answer 6

internal pudendal -> vaginal artery -> uterina branch of vaginal artery

Question 7

what vessels supply blood to penis and testis

Answer 7

penis:
aorta -> external iliac -> deep femoral -> pudendoepigastric trunk -> external pudendal -> cr artery of penis

aorta -> internal iliac -> cr gluteal -> obturator -> middle artery of the penis

aorta -> internal iliac -> internal pudendal -> artery of bulb of the penis

testis:
aorta -> testicular artery

Question 8

what vessels supply blood to the ovaries and uterine tract

Answer 8

uterus:
aorta -> external iliac -> uterine artery

aorta -> internal iliac -> internal pudendal -> vaginal -> uterine branch of vaginal artery

ovary:
aorta -> ovarian

Question 9

superficial inguinal ring

Answer 9

split in aponeurosis of external abdominal obliques

Question 10

deep inguinal rings

Answer 10

cd- inguinal ligament (from ex abdominal obliques)
cr- cd free edge of int. abdominal oblique
med- rectus abdominus

Question 11

inguinal ligament

Answer 11

strengthened cd edge of aponeurosis of external oblique; sweeps from prepubic tendon dorsolateraly toward coxal tuber

Question 12

vascular lacuna

Answer 12

cd to inguinal ligament; this = base of narrow femoral triangle

Question 13

what passes through vascular lacuna

Answer 13

external iliac artery and vein; structures that disappear cd to inguinal ligament enter vascular lacuna; structures passing through vascular lacuna enter sq tissues of groin

Question 14

vaginal ring

Answer 14

lies at the begging of the evagination of the parietal peritoneum through the inguinal canal; forms the communication between general peritoneal cavity and cavity of the vaginal tunic; this is only found in males

Question 15

vaginal ring vs deep inguinal ring

Answer 15

deep inguinal ring in both males and females; structures passing through deep inguinal ring enter inguinal canal

Question 16

what structures pass through inguinal canal in both female and male

Answer 16

external pudendal artery, genitofemoral nerve, lymphatic vessels

Question 17

what structures pass through inguinal canal only in male

Answer 17

parietal peritoneum evaginated down through ring to form vaginal tunic, deferent duct with mesoductus and testicular vessels and nerves in mesorchium pass through as spermatic cord

Question 18

mesenteric structures surrounding the testicle

Answer 18

vaginal tunic is outpocketing of peritoneum name is based on if it is directly surrounding a structure (visceral vaginal tunic) or that component just deep to skin and spermatic fascia (parietal vaginal tunic); vaginal cavity is space between the visceral and parietal vaginal tunic; the ductus deferens which is enclosed in the spermatic cord which is covered by vaginal tunic is suspended by mesoductus deferens; testicular vessels and nerves are also part of spermatic cord which is covered by vaginal tunic; the testicular vessels and nerves are enclosed by mesorchium which is fold of serous membrane that attaches cuadually to parietal vaginal tunic and ends distally by forming ligament of the tail of the epididymus

Question 19

mesoductus deferens

Answer 19

the ductus deferens which is enclosed in the spermatic cord which is covered by vaginal tunic is suspended by mesoductus deferens

Question 20

mesorchium

Answer 20

the testicular vessels and nerves are enclosed by mesorchium which is fold of serous membrane that attaches cuadually to parietal vaginal tunic and ends distally by forming ligament of the tail of the epididymus

Question 21

what muscle does cremaster originate from?

Answer 21

internal abdominal oblique

Question 22

primary blood supply for mammary glands

Answer 22

aorta -> external iliac -> deep femoral -> pudendoepigastric trunk -> external pudendal (supplies mammary gland via cd superficial epigastric)

Question 23

what lymph nodes drain mammary glands

Answer 23

superficial inguinal

Question 24

flow of milk from lactiferous ducts to teat orifice

Answer 24

lactiferous duct
lactiferous sinus (gland sinus -> teat sinus)
Teat canal (aka papillary ducts)
Teat orifice

Question 25

skin folds that make up prepuce of horse

Answer 25

external lamina 
- preputial orifice
internal lamina 
- preputial fold
- preputial ring
- preputial cavity
fossa glandis
uretheral sinus