Anus
The anus is the opening from the rectum to the outside of the body. The rectum is the final section of the large intestine.
anus
There are two sphincter muscles that "close" the rectum.
anal sphincter
The rectum is the terminal section of the alimentary canal; from the sigmoid flexure to the anus. The rectum itself is an opening, and a specific mass would be hard to calculate and rather small.
The naturally occurring opening at the terminal end of the large intestine is the anus.
it is the rectum;)
The rectum is the last portion of the large intestine. It stores solid waste until it is released from the body by the opening known as the anus.
The rectum, that final (generally) straight length of the large intestine, ends at the anal opening or anus. A link is provided below.
No. The muscular opening is the anal sphincter, or simply, 'anus'. The part of the intestine that leads up to the anus is called the rectum. The rectum is more or less just a storage place until the intestine is ready to empty itself through the anus to the outside world.
That should be the rectum.
Rectum