Question

What is the function of rectum?

Answer 1

Hint: Digestion is the breakdown of complex dietary ingredients into simpler molecules that may be absorbed and carried throughout the body by the blood. The digestion process releases energy, which the cells use to perform numerous life functions. The digestive tract is a tube-like structure that runs from the mouth to the large intestine. The alimentary canal is the name given to this tube.

Complete answer:
Waste items are passed into the rectum, which is the end of the large intestine, and then removed from the body as a solid mass known as stool. It is kept in the rectum as semi-solid faeces, which are then expelled from the body via the anal canal during the defecation process.
The rectum is the big intestine's most distal portion, and it serves as a temporary faeces storage area. It is connected to the sigmoid colon proximally and finishes in the anal canal.
At the level of the S3, the rectum begins (as a continuation of the sigmoid colon). It lacks taenia coli, haustra, and omental appendages, making it macroscopically distinct from the colon.
The ampulla, the rectum's terminal portion, relaxes to collect and temporarily hold faeces until discharge. It connects to the anal canal, which runs through the pelvic floor and terminates in the anus.
Nerve supply- The inferior mesenteric artery is terminated by the superior rectal artery.
The internal iliac artery branches into the middle rectal artery.
Branches of the internal pudendal artery make up the inferior rectal artery.

Note:
The digestive process starts in the mouth and finishes in the small intestine; the large intestines' primary job is to absorb any remaining water from undigested food and to allow bacterial fermentation of components that can no longer be digested.
The alimentary canal, also known as the gastrointestinal tract, is a network of hollow organs and tubes that runs from the mouth cavity to the pharynx, stomach, small intestines, large intestines, and eventually the anus. As food particles pass through the various compartments of the gastrointestinal tract, they are gradually digested.