Gross Anatomy: Small Intestines

Front 1

Makes up the first 2/5 of small intestine

Back 1

Jejunem

Front 2

Jejunum is primarily in ___ quadrant

Back 2

upper left

Front 3

Ileum is mainly in the __ quadrant

Back 3

lower right

Front 4

vessels and nerves of The Mesentery are in ___ fascia

Back 4

subserous

Front 5

Blood supply for the small intestines are embedded in ___

Back 5

The Mesentery

Front 6

Mesentery is translucent in the ____

Back 6

Jejunum

Front 7

Mesentery is fatty and opaque in the ___, because this is where most fat absorption takes place

Back 7

Ileum

Front 8

Lymph nodules are located in the ___ of the small intestine

Back 8

submucosa

Front 9

Folds of mucosa and submucosa in the small intestine, increase surface area

Back 9

plicae circulares

Front 10

Plicae circulares are more numerous in the ___

Back 10

Jejunum

Front 11

An outpocketing from the antimesenteric side of lleum, represents the remains of the embryonic yolk sac. Composed of different tissue types because yolk sac was undifferentiated.

Back 11

Meckel's Diverticulum

Front 12

If Meckel's diverticulum contains active gastric tissue, it can cause ___ from acidic secretions

Back 12

ulcers

Front 13

Meckel's diverticulum may be attached to anterior abdominal wall, thus restricting movements of the small intestines, can result in type of rotation called __

Back 13

volvulus

Front 14

Intestinal arcades are more complex in the ___

Back 14

Ileum

Front 15

Superior Mesenteric artery branches off the aorta at ___ vertebral level

Back 15

L1

Front 16

Sup. Mesenteric artery supplied the __ embryonically

Back 16

midgut

Front 17

Sup. Mesenteric a. passes __ to 3rd part of duodenum in midline to enter principal mesentery posteriorly

Back 17

Anterior

Front 18

Intestinal arteries branch off of the ___

Back 18

Sup. mesenteric artery

Front 19

Jejunal arteries form a __ level arcade that gives off arteriae recti

Back 19

single

Front 20

Ileal arteries form ___ arcades.

Back 20

multilevel

Front 21

Veni Recti --> __ --> Sup. Mesenteric v --> Portal vein

Back 21

Intestinal veins

Front 22

Jejunal and ileal veins come together to form __

Back 22

superior mesenteric vein

Front 23

Superior Mesenteric vein travels Anterior to 3rd part of duodenum, and ___ to pancreas.

Back 23

posterior

Front 24

Superior mesenteric vein is __ and __ to the SMA

Back 24

lateral, anterior

Front 25

Superior mesenteric vein unites with the splenic vein posterior to the ___ to form the portal vein

Back 25

neck of the pancreas

Front 26

Portal vein ascends to the liver through the __

Back 26

hepatoduodenal ligament

Front 27

Superior mesenteric lymph nodes and Celiac lymph nodes drain into the ___, which drains into the cisterna chyli.

Back 27

Intestinal trunk

Front 28

Descending colon lymph nodes drain into __

Back 28

Left lumbar trunk

Front 29

Colon begins at the __

Back 29

ileocecal junction

Front 30

The thickenings above and below the openings in the ileocecal junction

Back 30

Ileocecal valves

Front 31

Ileocecal valves come together on each side to form a ridge called __

Back 31

Frenulum

Front 32

Does cecum have mesentery?

Back 32

No

Front 33

The mesentery associated with appendix

Back 33

mesoappendix

Front 34

2/3 of the time, appendix is in the ___ postion, where it is retropertioneal and behind the cecum.

Back 34

Retrocecal

Front 35

1/3 of time, appendix is hanging free, extending straight off the edge of the cecum in the ___ position.

Back 35

Pelvis

Front 36

The ascending colon is supplied by branches of the ___

Back 36

Superior mesenteric artery

Front 37

Two parts of the colon that are retroperitoneal

Back 37

ascending and descending

Front 38

Ascending colon extends from the ___ to the ___

Back 38

Ileocecal junction to hepatic flexure

Front 39

Transverse colon lies at approx ___ vertebral level.

Back 39

L3

Front 40

Descending colon passes __ to lateral border of the left kidney

Back 40

anterior

Front 41

End of teniae coli denotes the end of the ___ and beginning of the rectum

Back 41

sigmoid colon

Front 42

Haustra are the bulges between the ___ of colon

Back 42

plica semilunares

Front 43

Branch of the SMA supplying the colon that heads straight for the ileocecal junction

Back 43

Ileocolic artery

Front 44

Branch of the Ileocolic artery that ascends toward the ascending colon

Back 44

colic branch

Front 45

Branch of the Ileocolic artery that goes inferiorly, supposedly anastomoses with the last intestinal artery

Back 45

Ileal branch

Front 46

Ileal branch of Ileocolic artery then gives off what 3 branches?

Back 46

Anterior cecal artery, Posterior cecal artery, Appendicular artery

Front 47

Anterior cecal artery is anterior to the __

Back 47

terminal ilem

Front 48

Posterior cecal artery is posterior to the ___

Back 48

terminal ileum

Front 49

Appendicular artery runs ___ to the cecum and terminal ileum to run into the margin of the mesoappendix

Back 49

posterior

Front 50

What branches of the SMA to the colon are retroperitoneal?

Back 50

Ileocolic, right colic

Front 51

Branches of the ___ supply the colon from transverse colon to rectum.

Back 51

Inferior Mesenteric Artery

Front 52

Inferior Mesenteric Artery branches off the aorta at __ vertebral level

Back 52

L3

Front 53

Inferior Mesentery artery branches off aorta ___ to the 3rd part of duodenum

Back 53

posterior

Front 54

Left Colic artery branches off of the __

Back 54

inferior mesenteric artery

Front 55

Left colic arteries ascending and descending branches supply the __

Back 55

descending colon

Front 56

All the branches of the Inferior Mesenteric that are inferior to the left colic (not including superior rectal)

Back 56

Sigmoid arteries

Front 57

At the pelvic brim, the Inferior mesenteric artery changes its name to __

Back 57

Superior rectal artery

Front 58

The arcade vessel supplying the colon that consists of a collection of anastomoses of adjacent vessels. Parallels the margin of the colon

Back 58

Marginal artery

Front 59

Ileocolic v, Right Colic v, and Middle colic v all drain into the ____

Back 59

Superior Mesenteric vein

Front 60

Superior Rectal vein drains into the __

Back 60

Inferior Mesenteric vein

Front 61

Inferior Mesenteric vein drains into the ___, does so posterior to the pancreas.

Back 61

Splenic vein

Front 62

Left colic and Sigmoid veins drain into the ___

Back 62

Inferior Mesenteric vein

Front 63

Splenic vein unites with the superior mesenteric vein posterior to the neck of the pancreas to form the ___

Back 63

Portal vein

Front 64

Superior mesenteric lymph nodes drain into the __

Back 64

intestinal lymph trunk

Front 65

Inferior mesenteric lymph nodes drain into the ___

Back 65

Left lumbar trunk