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

What are the essential elements of socialisation, Question 1: (a) Is it...

Question 1: (a) Is it true that Conjugal roles in the family are now increasingly integrated? (b) Analyse the functionalists' argument that it is biological differences that

Medieval art, Medieval Art: The medieval art of the Western world covers a...

Medieval Art: The medieval art of the Western world covers a huge scope of place and time, over 1000 years of art history in, the Middle East, Europe and North Africa. It involved

Explain the remedies available under judicial review, QUESTION "It has ...

QUESTION "It has often been said that Judicial Review is the only mean to have judicial control over administrative actions." Discuss the validity of this statement. Expl

Explain the two categories of readers, Question 1 Explain meaning of techn...

Question 1 Explain meaning of technical writers and also explain its role Question 2 What is Audience Analysis? Explain its significance in Technical Communication Question 3

Modern information technology departments, Modern Information Technology De...

Modern Information Technology Departments: In the early days of computer development, there was no such thing as a college degree in information technology. Software development &

Case of doubt over ethical practice, Question 1: (a) Explain in which ...

Question 1: (a) Explain in which circumstances, when compliants are made, these are not pursued? (b) Discuss the ways in which psychologists can avoid pitfalls. Questi

Gothic architecture, Gothic architecture: In Europe Architectural style th...

Gothic architecture: In Europe Architectural style that lasted from the mid 12th century to the 16th century, specifically a style of masonry building characterized by cavernous s

Public policy making process, Question 1: Explain clearly how Public Po...

Question 1: Explain clearly how Public Policy Making constitutes one of the major tasks which have to be accomplished by modern Governments. Question 2: "Policy Formul

Schizophrenia, To what extent is it possible to explain schizophrenia from ...

To what extent is it possible to explain schizophrenia from a biological perspective?

Education, role of school imparting family life education

role of school imparting family life education

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