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

Major investment of the company's funds, QUESTION The directors of a go...

QUESTION The directors of a gold mining company are considering making a major investment of the company's funds to develop a new gold mine. They delegate to a geologist the

Role of integrated library system, Role of Integrated library system: The ...

Role of Integrated library system: The role of the integrated library system is to help in manage the effective delivery of library services. Traditionally this has been anchored

E-commerce, E-Commerce Ecommerce is the idea used for any type of comme...

E-Commerce Ecommerce is the idea used for any type of commercial management, or business deals that involves the move of information across the globe via Internet. It has becom

Industrial Law , Industrial Law : A comparative analysis between banking an...

Industrial Law : A comparative analysis between banking and plantation Industry

Chemical engineering - process design, Problem Styrene can be produced by t...

Problem Styrene can be produced by the reactions: Ethylbenzene ! Styrene+H2 Ethylbenzene ! Benzene+Ethylene Ethylbenzene+H2 ! Toluene+CH4 The reactions take place at 600C and 1.7

Explain the ageing process, Problem: The existing welfare state has mad...

Problem: The existing welfare state has made provisions for the protection and welfare of the elderly. (a) Show the adequacy of these provisions. (b) What changes would y

Learning theory, how to write a reflection of doing the assignment?

how to write a reflection of doing the assignment?

Culture and society, Culture and society are intricately related. A cultur...

Culture and society are intricately related. A culture consists of the "objects" of a society, whereas a society consists of the people who share a common culture. When the terms

Visual trespass - property is an illusion, Whatever the maxim cuiusest sol...

Whatever the maxim cuiusest solum may have signified to the common lawyer of earlier centuries, it has since become obvious that its legal meaning is now heavily qualified by the a

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