Abdomen 2 Flashcards
Where do the exocrine secretion of the pancreas empty into?
duodenum by the pancreatic duct (s)
What is the function of the spleen?
- Important filter of blood cells
- significant component of immune system
Is the spleen covered in peritoneum?
Covered by peritoneum except at it hilum where splenic blood vessels enter
How did the spleen develop?
- between the two layers of the dorsal mesogastrium
2 As it grew it bulged out within the outer layer which forms its peritoneal covering - two double folds of peritoneum meet at the hilum - one in front the gastro splenic ligament and one behind the linalrenal ligament - between the 2 folds is the left hand limit of the lesser sac
Where is the splenic flexure in relation to the spleen?
In front and just below
Are the veins in front of the arteries in the renal vessels?
Yes
Where is the left renal vein?
crosses in front of aorta, just below the origin of the superior mesenteric artery
Where is the right renal vein?
shorter and passes steeply backwards to reach the right kidney
Where do the renal arteries arise?
just below the superior mesenteric arter
Where do the branches of renal artery and vein enter the kidney?
At the hilum
What creates the renal sinus?
At the hilum the surface of the kidneys is rolled inwards
What is the renal pelvis formed by?
convergence of a number of broad drainage channels
How may major calyces drain into the pelvis?
3 or 4 and each major calyx branches into several minor ones
How does each minor calyx end?
at a trumpet widening
What is at the end of each calyx?
solid tissue of kidney projects inwards in a mounded ridge called papilla
What does the renal penicula consist of?
outer cortex and inner medulla
What is the medulla continuous with?
papillae
What does the cortex of the suprarenal gland secrete?
Corticosteroids
What does the medulla secrete?
epinephrine and norepinephrine
Where does the ureter emerge from?
hilum of kidney and runs almost straight downwards toward the pelvic brim
What is behind the ureter and what crosses across it?
- psoas major muscle
- the testicular vessels cross in front of the ureter and ovarian vessels do in the female