Anus, Other Subject

Assignment Help:

The anus is the last part of the digestive tract. It is a 2-inch long canal consisting of the pelvic floor muscles and the two anal sphincters (internal and external). The lining of the upper anus is specialized to detect rectal contents. It lets you know whether the contents are liquid, gas, or solid. The anus is surrounded by sphincter muscles that are important in allowing control of stool. The pelvic floor muscle creates an angle between the rectum and the anus that stops stool from coming out when it is not supposed to. The internal sphincter is always tight, except when stool enters the rectum. It keeps us continent when we are asleep or otherwise unaware of the presence of stool. When we get an urge to go to the bathroom, we rely on our external sphincter to hold the stool until reaching a toilet, where it then relaxes to release the contents.

Most of the digestive tract is a tube composed of four layers:

The serosa, or outermost layer.

The muscularis externa, whose two sets of muscles produce the waves of contraction, called peristalsis, that move food along.
The submucosa, which contains blood vessels and nerve tissue that control digestion. The mucosa-epithelial layer, which absorbs digested food.


Related Discussions:- Anus

Selection, tell me points related to the selection topic

tell me points related to the selection topic

Credit card basics, CREDIT CARD BASICS A credit card is element of a sy...

CREDIT CARD BASICS A credit card is element of a system of payments named after the little plastic card issued to users of the system. The issuer of the card grants a line of c

Fees charged to customers in credit cards, FEES CHARGED TO CUSTOMERS Th...

FEES CHARGED TO CUSTOMERS The main fees are for delayed payments or late payments Charges that result in more than the credit limit on the card (whether done deliber

Historigram and histogram, what is the difference between historigram and H...

what is the difference between historigram and Histogram

Steps in digestion, Steps in Digestion 1) The mouth- Digestion begins...

Steps in Digestion 1) The mouth- Digestion begins when food enters the mouth. Chewing begins breaking down the food. Saliva begins breaking down the carbohydrates Three saliv

Humanities , what happen to the ukrainians and combodians?

what happen to the ukrainians and combodians?

Film theory, Film Theory: Film can be studied on many levels--as an art fo...

Film Theory: Film can be studied on many levels--as an art form, social commentary, historic record, reflection of the Zeitgeist of an era or culture, a philosophical or spiritual

Project, nigerian groups that help in protecting human rights

nigerian groups that help in protecting human rights

Principles to illness avoidance, Principles to Illness Avoidance , Health ...

Principles to Illness Avoidance , Health Support and Community Capacity Building in rural communities In order to prevent diseases, one has to eat well, exercise frequently

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd