Lab 6 Urogenital and pelvis learning issues Flashcards
external iliac branches
deep circumflex iliac cr and cd branches;
deep femoral
deep circumflex iliac cr and cd branch bifurcation
lateral iliac lymph nodes located at bifurcation into cr and cd branches
deep circumflex iliac cd branches
seen with lateral cutaneous femoral nerve at flank of stifle with sub iliac LNs
external pudendal
branches into cr artery of the penis (males) and supplies mammary gland (via cd superficial epigastric) (female)
courses through inguinal canal in both sexes
internal iliac branches male
- umbilical -> artery of ductus deferenes
- Internal pudendal ->
2a. prostatic artery
2b. artery of bulb of the penis - cd gluteal
- cr gluteal -> obturator -> middle artery of the penis
internal iliac branches female
internal pudendal -> vaginal artery -> uterina branch of vaginal artery
what vessels supply blood to penis and testis
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
what vessels supply blood to the ovaries and uterine tract
uterus:
aorta -> external iliac -> uterine artery
aorta -> internal iliac -> internal pudendal -> vaginal -> uterine branch of vaginal artery
ovary:
aorta -> ovarian
superficial inguinal ring
split in aponeurosis of external abdominal obliques
deep inguinal rings
cd- inguinal ligament (from ex abdominal obliques)
cr- cd free edge of int. abdominal oblique
med- rectus abdominus
inguinal ligament
strengthened cd edge of aponeurosis of external oblique; sweeps from prepubic tendon dorsolateraly toward coxal tuber
vascular lacuna
cd to inguinal ligament; this = base of narrow femoral triangle
what passes through vascular lacuna
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
vaginal ring
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
vaginal ring vs deep inguinal ring
deep inguinal ring in both males and females; structures passing through deep inguinal ring enter inguinal canal
what structures pass through inguinal canal in both female and male
external pudendal artery, genitofemoral nerve, lymphatic vessels
what structures pass through inguinal canal only in male
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
mesenteric structures surrounding the testicle
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
mesoductus deferens
the ductus deferens which is enclosed in the spermatic cord which is covered by vaginal tunic is suspended by mesoductus deferens
mesorchium
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
what muscle does cremaster originate from?
internal abdominal oblique
primary blood supply for mammary glands
aorta -> external iliac -> deep femoral -> pudendoepigastric trunk -> external pudendal (supplies mammary gland via cd superficial epigastric)
what lymph nodes drain mammary glands
superficial inguinal
flow of milk from lactiferous ducts to teat orifice
lactiferous duct
lactiferous sinus (gland sinus -> teat sinus)
Teat canal (aka papillary ducts)
Teat orifice
skin folds that make up prepuce of horse
external lamina - preputial orifice internal lamina - preputial fold - preputial ring - preputial cavity fossa glandis uretheral sinus