03a: Vascular System in Trunk Flashcards
List arteries off abdominal aorta (from superior to inferior) that supply body wall. Star the unpaired branches, if any.
- Inferior phrenic
- Lumbar
- Median sacral*
List arteries off abdominal aorta (from superior to inferior) that supply urogenital organs. Star the unpaired branches, if any.
- Middle suprarenal
- Renal
- Gonadal (testicular/ovarian)
The arterial system in abdomen, aka arteries directly off of (X), contributes to (Y) number of vascular planes.
X = abdominal aorta Y = 3 (right, left, anterior)
The venous system in abdomen, aka tributaries directly to (X), contributes to (Y) number of vascular planes.
X = IVC Y = 2 (right, left)
List the veins in abdomen that drain from body wall structures, into (X).
X = IVC
- Inferior phrenic
- Lumbar
List the veins in abdomen that drain from urogenital organs, into (X).
X = IVC
- Right suprarenal vein
- Right gonadal vein
- Both right and left renal veins
(X) drain(s) into (right/left) renal vein, which then drains into (Y). This differs from the opposite side.
X = left suprarenal and left gonadal
Left;
Y = IVC
The pelvic walls, floors, viscera are primarily supplied by branches of (X).
X = internal iliac (aka hypogastric) artery
List the primary branches off the internal iliac artery. Briefly include what each supplies.
- Anterior (primarily pelvic viscera)
2. Posterior (body wall structures)
List branches off posterior internal iliac.
- Iliolumbar
- Lateral sacral
- Superior gluteal
Iliolumbar artery, off of (X), further branches into which arteries? What does each supply?
X = posterior branch of internal iliac
- Iliac artery (iliacus muscle and ilium)
- Lumbar artery (psoas major and quadratus lumborum)
Lateral sacral artery, off of (X), supplies:
X = posterior branch of internal iliac
- Spinal meninges
- Sacral nerves, muscles, and overlying skin
List branches off anterior internal iliac artery. Star those only in female and double-star those only in male.
- Umbilical
- Obturator
- Inferior vesical**
- Uterine and vaginal*
- Middle rectal
- Internal pudendal
- Inferior gluteal
(X) artery in adult gives off multiple (Y) arteries to bladder and ends as (Z)
X = umbilical Y = vesical Z = medial umbilical ligaments
There are two (median/medial) umbilical ligaments and one (median/medial) umbilical ligament. Which is/are covered in peritoneum?
Medial; median
Medial umbilical ligaments covered in peritoneum
Internal pudendal artery supplies:
Pelvic floor and external genitalia
(X) artery has an unusual pathway. It originates in pelvis as branch from (Y), then loops around (Z) before tracking (anteriorly/posteriorly).
X = internal pudendal Y = anterior branch of internal iliac artery Z = ischial spine
Anteriorly
Branches of internal pudendal artery in females.
- Inferior rectal
- Perineal
- Uretheral
- Posterior labial
- Artery of bulb of vestibule
- Dorsal artery of clitoris
- Deep artery of clitoris
Branches of internal pudendal artery in males.
- Inferior rectal
- Perineal
- Uretheral
- Posterior scrotal
- Artery of bulb of penis
- Dorsal artery of penis
- Deep artery of penis
Anal canal is supplied by:
Inferior rectal artery
Venous drainage of posterior body wall involves (X) draining into:
X = intercostal/lumbar veins
Into IVC/azygous directly or into SVC via:
- ascending lumber veins to azygous to SVC
- epidural venous plexus to azygous to SVC
Venous drainage of abdominopelvic region into (X) is called (Y) system.
X = IVC Y = Caval (system)
Venous drainage of abdominal viscera into (X) is called (Y) system.
X = IVC Y = Hepatic Portal
The epidural venous plexus resides in which location?
Inside the vertebral column
Union of (X) creates the IVC at level of (Y) vertebra.
X = R/L common iliac veins Y = L5
T/F: IVC ascends the posterior abdominal wall along the median plane/aorta.
False - ascends slightly right of median plane
T/F: Hepatic portal system drains visceral first into IVC then into liver.
False - liver, then IVC
Union of (X) creates the IVC at level of (Y) vertebra.
X = R/L common iliac veins Y = L5
T/F: IVC ascends the posterior abdominal wall along the median plane/aorta.
False - ascends slightly right of median plane
List the veins contributing to portal vein.
- L and R gastric
- Splenic
- Superior mesenteric
- Inferior mesenteric (drains into splenic)
In rectus sheath, anastomosis between (X) occurs via which veins?
X = SVC and IVC
- Inferior epigastric to external iliac to IVC
- Superior epigastric to internal thoracic to SVC
Superficial anterolateral body wall has anastomosis between (X) via which veins?
X = SVC and IVC
- Superficial epigastric to femoral to external iliac to IVC
- Lateral thoracic to azygous to SVC
Paraumbilical veins lie along (X), within (Y), and normally drain into (Z).
X = Ligamentum teres Y = Falciform ligament Z = left branch of portal vein
List the portocaval anastamoses
- Esophageal
- Paraumbilical
- Rectal
- Retroperitoneal
(Increase/decrease) pressure in portal system causes increase blood flow to be redirected to:
Increase;
Into cabal system
Esophageal varices are a result of (X) anastamoses.
X = paraesophageal portocaval
Cystic vein normally drains into (Z).
Z = right branch of portal vein
Caput medusae is a result of (X) anastamoses.
X = paraumbilical portocaval
Esophageal varices are a result of (X) anastamoses.
X = paraesophageal portocaval
(Perimuscular/internal rectal) plexus is drained into caval system.
Perimuscular
List steps of normal venous drainage of rectum/anal canal into portal system.
- Superior rectal vein
- Inferior mesenteric vein
- Splenic vein to portal (etc.)
