LARGE INTESTINE

LARGE INTESTINE

start from the cecum & ended at the rectum.

it absorbs water and electrolytes to form feces.

• CECUM = where small intestine enter at ileocecal junction & have appendix.

• ASCENDING COLON = retroperitoneal organ (locate more posteriorly). Right side of abdomen. Meets the liver, it turns 90 degrees to move horizontally. This turn is known as the hepatic flexure.

• TRANSVERSE COLON = intraperitoneal organ (locate more anteriorly), center & upper part abdomen, extends to the spleen, where it turns another 90 degrees to point down. This turn is known as splenic flexure.

• DESCENDING COLON = retroperitoneal organ (locate more posteriorly). Left side of abdomen. After the splenic flexure, the colon moves down towards the pelvis.

• SIGMOID COLON = Intraperitoneal organ (locate more anteriorly). 40 cm. S-shape.

• In about 40 cm long.

• Located at left lower quadrant.

• When the colon begins to turn medially, it becomes the sigmoid colon. Ended at the level of S3 and continue to rectum.

• S-shape structure.

Multiple Choice

Large intestine started at the __________ and ended at the rectum.

• appendix

• hepatic flexure

• pylorus

• cecum

Multiple Choice

Estimate the abdominal region where the cecum that has an appendix located?

• A

• B

• C

• D

Multiple Choice

TRUE or FALSE

Ascending colon and descending colon locate more posteriorly and known as retroperitoneal organ.

• TRUE

• FALSE

Multiple Choice

TRUE or FALSE

Descending colon located at the right side of the abdomen.

• TRUE

• FALSE

Multiple Choice

A patient has a cancer at the large intestine. He always feel pain at the quadrant D. Which part of large intestine that might be involved?

• Cecum

• Ascending colon

• Transverse colon

• Sigmoid colon

Taniae Coli

Haustra

Multiple Choice

This is part of the colon. Which one is haustra?

• A

• B

• C

Two main sources of the arterial supply are SMA and IMA

Open Ended

Label the name of anatomy structures A, B, C and D?