Answer: Question no 37 and 38 are not clear. 37) what molecules absorbed? 38) which enter the bloodstream or lymphatic system? 39) Large intestine is also called as colon and it is last part of gastrointestinal tract (of the digestive system of vertebrates) where the final stages of digestion occur. The major function of the large intestine is to absorb water from the remaining indigestible food matter and remaining waste material is stored as feces before elimination from the body. 40) Rectum is a component of the lower gastrointestinal tract. It is a straight portion which is continuation of the sigmoid colon, and connects to the anus. The function of rectum is the temporary storage of feces. When the rectum becomes full, the increase in intrarectal pressure forces the walls of the anal canal apart, allowing the fecal matter to enter the canal. The rectum shortens as material is forced into the anal canal. 41) Orifice is the external opening of the rectum, controls the expulsion of feces. Its function is to push the feces out of the anal canal by the help of internal and external anal sphincters (two muscular rings which control defeaecation). 42) Pancreas is an endocrine gland and a digestive organ as well, which secrete: Solution Answer: Question no 37 and 38 are not clear. 37) what molecules absorbed? 38) which enter the bloodstream or lymphatic system? 39) Large intestine is also called as colon and it is last part of gastrointestinal tract (of the digestive system of vertebrates) where the final stages of digestion occur. The major function of the large intestine is to absorb water from the remaining indigestible food matter and remaining waste material is stored as feces before elimination from the body. 40) Rectum is a component of the lower gastrointestinal tract. It is a straight portion which is continuation of the sigmoid colon, and connects to the anus. The function of rectum is the temporary storage of feces. When the rectum becomes full, the increase in intrarectal pressure forces the walls of the anal canal apart, allowing the fecal matter to enter the canal. The rectum shortens as material is forced into the anal canal. 41) Orifice is the external opening of the rectum, controls the expulsion of feces. Its function is to push the feces out of the anal canal by the help of internal and external anal sphincters (two muscular rings which control defeaecation). 42) Pancreas is an endocrine gland and a digestive organ as well, which secrete:.