4.1 Posterior abdominal wall Flashcards
What are the muscles of the posterior abdominal wall?
Psoas major, Psoas minor, Quadratus Lumborum and Iliacus
Describe Psoas majors borders
Over transverse processes as one continuous origin with vertebrae T12-L5, lateral border is oblique, passes beneath inguinal ligament inserting onto lesser trochanter, has its own fascial layer
Describe Psoas minor borders
From T12-L1, tendon blends with fascia of Psoas major
Describe Quadratus Lumborum
Attaches to the iliac crest, transverse process of L5 and inserting into 12th rib. Psoas major overlies it
Describe Iliacus
In Iliac fossa, passes under inguinal ligament to lesser trochanter to make tendon of iliopsoas, has its own fascial layer
What are intraperitoneal viscera?
Viscera that are inside the peritoneal cavity that are connected to the wall by a mesentary and covered by parietal peritoneal
What are retroperitoneal viscera?
Viscera outside the peritoneal cavity
Describe the Kidneys location
Around the level T12-L3 infront of rib 12, close relation with the diaphragm, apex has adrenal glands.
What is the outer cortex?
It is a a continuous later, pale, and surrounds the medulla
What is the medulla?
Discontinuous later containing dark pyramids
Are there few or many renal arteries?
There are 5 renal arteries
What is different for the R renal artery?
It has to get around the IVC to get to the Hilum
Where are the 3 sites of narrowing in the ureters?
Pelvic brim, origin of the ureter and the exit to the bladder
Describe the features of the Large Intestine
Haustra, Fat tags, 3 muscle bands (Tenia)
What are the 2 flexures called?
Right colic (hepatic) flexture and the Left colic (splenic) flexture
What are the 2 surfaces of the Liver called?
Diaphragmatic and visceral surfaces
What is classified as the functional left lobe?
Caudate, Quadrate and the Left lobe
What does the Gallbladder do?
Stores and concentrates bile
Name the duct system of the Gallbladder
Left Hepatic Duct joins with the Right Hepatic Duct to form the Common Hepatic Duct. This joins with the bile that has been stored in the body of the gallbladder to form the Common Bile Duct. This continues to Major Duodenal Papilla
Name the anatomy of the Pancreas
Head, Neck and Tail with a principle pancreatic duct
What surrounds the head of the Pancreas?
The Duodenum
Where does the tail of the Pancreas lead?
To the hilum of the Spleen
What are the 2 surfaces of the Spleen called?
Diaphragmatic and visceral
What does the hilum of the Spleen contain?
Splenic artery, splenic vein and gastrophrenic ligament
Where is the anatomical position of the Spleen?
Beneath the diaphragm, above the L colic flexture, near ribs 9,10,11, axis lies across left 10th rib
