GA1. Small & Large Intestine Flashcards
SMA: superior Mesenteric art
Name the 3 parts of the small intestine
- duodenum
- jejunum
- ileum
Is duodenum retro/ intraperitoneal
mostly retro. (besides the first 2 cm)
Is the jejunum retro/intraperitoneal
intraperitoneal
Is the ileum retro/ interaperitoneal?
intraperitoneal
At what vertebra level does the small intestine begin?
L1
The duodenum is a part of what organ?
small intestine
Blood supply of the duodenum
superior & inferior pancreatico-duodenal art.
Lymphatic drainage of the duodenum
pancreatoduodenal nodes–> celiac nodes –> superior mesenteric nodes
The jejunum & ileum attach to the posterior abdominal wall by the _____
mesentery
portion of the small intestine located in the upper part of the peritoneal cavity
Jejunum
Portion of the small intestine located in the lower part of the peritoneal cavity
Ileum
_______ of the Small Intest. is wider, has thicker walls , redder, taller, and more circular folds
Jejunum
______ of the small intestine is narrower, Shorter, and fewr circular folds has thinner walls
iluem
itty-bitty Ileum
______ of the small intestines has few arcades, and few long branches
Jejunum
______ of the small intestine has numerous arcades and short numerous branches
Ileum
Where are peyer’s patches located ?
Ileum
- along the anti-mesenteric border
The veins of the duodenum follow the art. and drain into the _________ vein
hepatic portal vein
The Superior Mesenteric arises from the aorta at vertebral level _____
L1
The arteries that branch from the SMA are called _______
arcades
arterial arcades give rise to straight arteries called _____
vasa reta
Lymph drainage of the duodenum to the Sup. Mesenteric Node
Duodenum –> pancreatodudenal Node –> celiac Node –> Superior Mesenteric Nodes
What is the immediate node that the duodenum drain into
Pancreatodudenal Node
Lymph drainage : duodenum –> pancreatodudenal Node –> ______ –> Superior mesenteric Node
celiac trunk
What is the pathway of the lymph drainage of the jejunum & iluim drain? (To the superior mesenteric Node)
Jejunum & Ileum –> Mesenteric Node –> superor mesenteric Node
What is the lymph drainage of the small intestine after it has reached the superior mesenteric node?
Superior mesenteric node–> intestinal lymph trunk –> cisternal chyli
What are the three nerve supplies to the Small Intestine
Caliac PLexus & Superior Mesenteric PLexus
(Post gg SP : T8-T10)
Vagus - PS pre gg
Name the parts of the Large intestine
Cecum, appendix, ascending colon, transverse colon, descending colon sigmoid colon, rectum, and anal canal
______ are thickened bands of smooth longitudinal muscle. There are three bands on the large intestine
Teniae coli
_____ are the individual segments in the large intestine
Haustrations
sound like striations
_____ are fat deosits on the large intestine
Epiploical appendages
The cecum lies under the line where the ____ ends
ilium
The cecum is located in the _____ fossa
Right iliac Fossa
Attached to the cecum is the
appendix
The appendix is attached to what structure
Cecum
The cecum is intra/ retro peritoneal?
intreperitoneal
The appendix is intra/retroperitoneal
Intraperitoneal
_______ art. supplies the appendix
Post. cecal branch
______ & ________ art.s supply the cecum
Anterior & Posterior Cecal Branch
______ & _____ art supplies the ascending colon
R. colic art & Ileocolic art
The R. 2/3 rds of the transverse colon is supplied by ____
Middle colic
The L. 1/3rd of the transverse colon is supplied by the ______ art
L. Colic Art
The descending colon is supplied by the ____ & ____ art.
L. Colic art. & Sigmoid Art.
The sigmoid is supplied by ______ art
sigmoid art.
The rectum is supplied by _____, _____, & _____ art.s
Superior, middle, and inferior rectal art.
The anal canal is supplied by __ & ____ art.s
Superopr and inferior rectal art.
The Anterior cecal branch art. gives blood to ____
cecum
The post. cecal branch art. supplies ____ & ___
Cecum and appendix
The R. Colic art supplies the ____
ascending art
The Ileocolic art. supplies the _____
ascending colon
The middle colic art. supplies ____
R. 2/3 of the transverse colon
The L. Colic art. supplies the _____ & _____
Transverse colon & descending colon
The sigmoid art supplies the ______ & _____
descending colon & sigmoid
The Middle, superior, and inferior rectal art supplies _____
rectum
The superior & inferior Rectal art supplies ____
anal canal
Name the three branches of the Superior mesenteric art
- Ileocolic art
- R. Colic art.
- Middle Colic art
Name the three arts that the inferior mesenteric art gives rise to
- Superior, middle, inferior rectal art
- Sigmoid Art
- L. Colic art
Appendix contains a large amt of ____
lymphoid tissue
Ascending colon ends at the ________
R. colic flexure
IS the ascending colon intra/ retroperitoneal
Retroperitoneal
Is the descending colon intraperitoneal/ Retro?
Retro
Nerve innervation of the superior portion of the sigmoid
Inferior mesenteric plexus
Nerve innervation of the inferior portion of the sigmoid
Hypogastric plexus
The sigmoid is attached to the post. abd. wall by the __________
sigmoid mesocolon
The rectum begins in front of _____
S3
The rectum ends ______
1 in. in front of the tip of the coccyx
The anal canals internal sphincter is _____
involuntary
The anal canals external sphincter is _____
voluntary
