Relaxing your sphincter If your sphincters are not relaxed enough, it can feel very unpleasant, or even painful, if someone's finger or penis goes inside. The mucous membrane also easily absorbs viruses. The internal anal sphincter will only relax when a light pressure is applied, for example, from a stool on the inside that is ready to be discharged, or from a finger or penis from the outside. Is the information easy to understand? Anus and sphincters The anus is the last part of the rectum. Tunde Ajaja Ordinarily, there should be only one main route to sexual satisfaction — intercourse, but in reality, people have devised several means to that destination, and one of the ways some people have adopted is anal sex.
Besides the sphincters, the networks of blood vessels known as corpora cavernosa inside the anus ensure that moisture and air will not escape when you don't want them to.
Five reasons you should never try anal sex
It is closed off by two rings of muscle called sphincters. Anus and sphincters The anus is the last part of the rectum. Tools for healthy sex. Fragile mucous membrane The inside of your anus and rectum is covered with mucous membrane. This is mainly because the anus is not lubricated like the vagina, thus, thrusting might bring about some pains, more so that the skin on the penis is such a flexible one that is prone to tear on slight friction.