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

Environmental management system, Environmental Management System: EMS (Env...

Environmental Management System: EMS (Environmental management system) refers to the management of an organization's environmental programs in a systematic, comprehensive, planned

The Listeners, Which line in "The Listeners" is an example of alliteration?...

Which line in "The Listeners" is an example of alliteration? "Ay, they heard his foot upon the stirrup" "And how the silence surged softly backward" "Though every word he spake" "W

Symmetric cryptography, Symmetric Cryptography Until recently, symmetri...

Symmetric Cryptography Until recently, symmetric encryption techniques were used to secure information transmitted on public networks. Traditional, symmetric cryptographic syst

Business Motivation, Assessment Description During this subject so far, you...

Assessment Description During this subject so far, you have been exposed to various business psychology theories that have an application to individuals, teams and organisations. B

Server environment - in hardware, In hardware A server is a computer th...

In hardware A server is a computer that has been place away to run a specific server application. For illustration, while the software Apache HTTP Server is used as the web ser

Principles of environmental control in a workplace, Question 1: (a) Ex...

Question 1: (a) Explain how environmental factors remain a major cause of sickness and death in many regions of the world. (b) How are Environmental Hazards classified?

Alternative systems of e-cash, Alternative Systems of E-cash Officially...

Alternative Systems of E-cash Officially digital money or electronic is a illustration, or a system of credits and debits, used to replace value, inside another system, or itse

Northern renaissance art, Northern Renaissance Art: The Northern Renaissan...

Northern Renaissance Art: The Northern Renaissance refers to the Renaissance outside of Italy however in Europe. Typically the major centers for art included the Germany, Netherla

Write a long note on shooting in daylight, Question 1 Write a long note on...

Question 1 Write a long note on the Camera Control Unit (including partial CCU control and complete remote camera control) and the Video switcher Question 2 Write a long note

ACT, Help with the ACT

Help with the ACT

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