Large Intestine Flashcards
The large intestine extends from the ____ to the _____.
Ileum to the anus
How long is the large intestine?
5 feet
What are the sections of the large intestine?
Cecum, Ascending Colon, Transverse Colon, Decending Colon, Sigmoid Colon, Rectum, and Anal Canal
What are the longitudinal muscles grouped into 3 that run along the colon?
Tenia Colia
What is the name of each individual segment of the large intestine?
Haustrations
Fatty protrusions surrounded by visceral peritoneum are called ____.
Epiploical appendages
What is the landmark used to separate the cecum from the ascending colon?
Ileocecal Junction
What is attached to the posteromedial side of the cecum?
appendix
What is the blood supply to the cecum?
anterior and posterior cecal branches of the ileocolic artery
What is the ileocolic artery a branch of?
Superior Mesenteric Artery
What is the name of the folds inside the colon?
Semilunar folds
How long is the appendix?
3-5 inches
What does the appendix contain?
A large amount of lymphoid tissue
Where is the base of the appendix situated?
beneath McBurney’s Point
What is the blood supply to the appendix?
appendicular artery
What is the appendicular artery a branch of?
posterior cecal artery
What is the parasympathetic nerve supply to the appendix?
Vagus Nerve
What is the sympathetic nerve supply to the appendix?
Lesser and Least Splanchnic Nerves via the Superior Mesenteric Plexus
Afferent fibers for appendical pain enter the:
T10 segment
What is Rovsing Sign?
When the left side, opposite the appendix, is touched, the patient complains of pain on the right side.
What is iliopsoas sign?
When flexing the thigh causes pain around the appendix.
How long is the ascending colon?
5 inches
Where does the ascending colon end?
Right colic flexure (A.K.A. the hepatic flexure)
Is the ascending colon retro or intraperitoneal?
Retroperitoneal
What is the blood supply to the ascending colon?
Ileocolic and right colic arteries via the Superior Mesenteric Artery
What is the sympathetic nerve supply to the ascending colon?
Lesser and Least Splanchnic Nerves via the Superior Mesenteric Plexus
What is the parasympathetic nerve supply to the ascending colon?
Vagus Nerve