The Longest Portion of the Large Intestine Region is Known

Question

The longest portion of the large intestine region is known as the _____________.  
A) lumen
B) appendix
C) rectum
D) cecum
E) colon

Accepted Answer

The term "large intestine" usually refers to the colon, which is the longest portion of the large intestine region. The cecum is the first part of the large intestine, the appendix is a small pouch attached to the cecum, and the rectum is the final part of the large intestine before the anus. Lumen refers to the inside space of the large intestine (or any hollow organ). Therefore, the correct answer is E) colon.