Abdominal Flashcards
What is the name of the ligament, shown in yellow, that acts as an inferior border for the surface marking of the abdomen?
Inguinal Ligament
The horizontal plane of the abdomen is called the
Subcostal and Transtubercular Plane
The vertical plane of the abdomen is called the
Midclavicular Plane
Name the nine regions of the abdomen
Right Hypochondrium Epigastric Left Hypochondrium Right Lumbar Periumbilical Left Lumbar Right Iliac Fossa Hypogastrium Left Iliac Fossa
What dermatome is the umbilicus in?
T10
Rectus Sheath is formed from Aponeurosis of which three muscles
External Oblique
Internal oblique
Transversus Abdominis
Within the rectus sheath lie what two muscles:
Rectus Abdominis
Pyramidalis
In the centre of the rectus sheath is a horizontal line of connective tissue. This is called the
Linea Alba
Function of Pyramidalis
Tense Linea Alba
Inferior Abdo Veins drain to
Splenic Vein
The Superior Abdo Veins drain to
Hepatic Portal Vein
Inferior Abdo Arteries arise from
External Iliac Artery
Superior Abdo Arteries arise from
Internal Thoracic Artery
Above the Umbilicus the lymphatic drainage goes to
Axillary Lymph
Below the umbilicus the lymphatic drainage goes to the
Superficial Inguinal Nodes
What makes up roof of inguinal canal
Transversals Fascia
Internal Oblique
Transversus Abdominis
What makes up anterior wall of inguinal canal
Aponeurosis of External Oblique
Internal Oblique
What makes up floor of inguinal canal
Inguinal Ligament
Lacunar Ligament
What makes up posterior wall of inguinal canal
Transversals Fascia
The inguinal ligament originates at the anterior superior iliac spine and attaches to the
inferiomedially: pubic tubercle and superolaterally ant superior iliac spine. .
The inguinal ligament is formed from the aponeurosis of which muscle?
External Oblique
The superficial inguinal ring is a break in the aponeurosis of what muscle layer?
External Oblique
What anatomical point is used surgically to determine the location of the superficial inguinal ring?
Pubic Tubercle
Where is the deep inguinal ring positioned in relation to the pubic tubercle?
Superiolaterally
The deep inguinal ring is an oval shaped opening in which muscle layer’s fascia?
Transversals Abdominis
The inguinal ligament is thickened medially by
Lacunar Ligament
Contents of Inguinal Canal in Male
Spermatic Cord
Ilioinguinal Nerve
Blood and Lymphatics
Contents of Inguinal Canal in Female
Round Ligament of Uterus
Ilioinguinal Nerve
Blood and Lymphatics
How does indirect inguinal hernia happen
Congenital weakness in deep inguinal ring
Femoral hernias occur where
Below inguinal ligament
Name the three posterior abdominal walls
Psoas Major
Iliacus
Quadratus Lumborum
Psoas Major Action
Flex thigh inferiorly
Flex vertebrae superior
Iliacus Action
Flex thigh and Stablise Hip
Quadratus Lumborum Action
Extend and Lateral Flex Spine
What are the 3 main openings in diaphragm
Caval Hiatus T8
Oesophageal Hiatus T10
Aortic Hiatus T12
What opening does the thoracic duct pass through?
T12 Aortic Hiatus
The foregut runs from the
Oesophagus to Duodenum
The midgut runs from the
Duodenum to Transverse Colon
The handout runs from the
Transverse Colon to Rectum
The celiac artery supplies the
Foregut
The superior mesenteric artery supplies
Midgut
The inferior mesenteric artery supplies the
hindfgut
The celiac artery comes off the aorta at
T12
The Sup Mes Artery comes off aorta at
L3
The inferior mes artery comes off aorta at
L3
Name the three branches of celiac trunk
Left Gastric
Splenic
Common Hepatic
The Renal Arteries come off the aorta at
L1
At what vertebral level does aorta divide into 2 common iliac arteries
L4
What vertebral level does Common Iliac Vein merge to form IVC
L5
The portal vein is formed by which 2 major veins
Inferior Mes and Sup Mes Veins
Where does the inferior mesenteric vein drain to?
Splenic
Where are the four sites of the portal-systemic anastomoses?
Anorectal Junction: between superior rectal vein and inferior rectal veins
Retroperitoneal: between portal tributaries of mesenteric veins and retroperitoneal veins.
Paraumbilical: between portal veins of liver and veins of anterior abdominal wall.
Oesophageal: between oesophageal branch of left gastric vein and oesophageal tributaries to azygos system.