Digestive system - small intestine, Biology

SMALL INTESTINE -

A narrow tube 6 m long. In rabbit 4 m. long.Differentiated into duodenum, jejunum & Ileum.

(i) Duodenum -

2.5 cm long. C-shaped (U-shaped in rabbit).

It receives hepatopancreatic duct formed by the union of bile duct & pencreatic duct.

It opens at papillae of veter point, here splinctor of Oddi present.

In submucosa Brunner's glands present, open at crypt of leihberkuhn.

Villi are large.

(ii) Jejunum -

2.4 m long. It's walll is thicker and more vascular then ileum.

(iii) Ileum -

3.6 m long. Wall is thiner and less vascular.

On wall Payer's patches (30-60, yellow, lymphoid tissue) are present.

Brunner's glands are absent. Here surface area is increased, 600 times by there ways.

Posted Date: 10/1/2012 7:39:32 AM | Location : United States







Related Discussions:- Digestive system - small intestine, Assignment Help, Ask Question on Digestive system - small intestine, Get Answer, Expert's Help, Digestive system - small intestine Discussions

Write discussion on Digestive system - small intestine
Your posts are moderated
Related Questions
collection of different animals,human being and insects stages of binomial nomenclature

Ehrlichiosis The disease is caused by a rickettisia, called Ehrlichia canis. Dogs and man are the reservoir hosts. The infection is transmitted through bite of infected tick, Rhip

Origin of Regeneration Cells of Blastema The origin of the cells making the blastema in vertebrates has been investigated by various workers in the case of regenerating legs

Question : (i) What is Ciguatera Fish Poisoning provide some examples of fishes implicated in Ciguatera Fish Poisoning in Mauritius? (ii) Provide a general account of its d

The fishes belong to class Pisces under vertebrates. 2. In fishes, the respiratory system consists of mouth, pharynx, internal branchial apertures, branchial pouches and external b

what are viroids

Define the Phosphorus - The Macromineral? The body contains about 620 g (20 moles) of phosphorus. Of this 87% is present in bones. It is thus more widely distributed in the bod

what are the types of pyramids studied

How old is the universe? From the analysis of data collected by the Hubble telescope the age of the universe is estimated to be about 12 billion years.

Minerals :- Potassium Food Source      Fruits, vegetables, meats Nutritional Functional role Essential nutrient: Deficiency is rare. Salt substitute: KCl may be