Stomach

-

 Explain the structure of stomach:-

The stomach is a J-shaped, thick-walled organ located between the oesophagus and small intestine. It consists of a dilated structure with four major parts. They are:

  • Fundus 
  • Body 
  • Antrum 
  • Pylorus 

Fundus:

The Fundus is the main opening of the stomach. It is also called a cardiac region. It is the region where the oesophagus terminates. The chewed food from the oesophagus first enters this region and is stored in the stomach. The function of Fundus is to churn and mix the chewed food. It consists of a dome-like shape. It is located near the diaphragm and left to the Cardiac. 

Body:

After the Fundus, the body of the stomach comes, which is the major part of the whole stomach. It is the storehouse of the stomach, where all the chewed food is stored. Along with this, all the actions of enzymes take place in the body of the stomach. 

Antrum: 

The antrum is also called a Pylorus Antrum. The main function of the antrum is to retain the food in the stomach for a longer time. The Pylorus is used to describe the termination part of the stomach. It is the finishing point of the stomach, from where the food merges into the small intestine. It firstly sends food to the duodenum part of the stomach, and then food slightly moves to the small intestine for further digestion. 

Pylorus 

It is the closing of the Stomach. From this part, the food enters the small intestine. 


Comments

Post a Comment

Popular posts from this blog

Cell Structure

-
   What is cell?  It is important to note that the cell's are not only the building blocks of the body but are the functional unit of life too. The basic unit of life. A cell is the smallest self-functioning unit found in all the living organisms. Cells may exist as independent unit of life or may form colonies or tissue as in the higher plants and animals. Each cell is enclosed by an outer membrane or cell wall called as the cell membrane.  Cell structure:- The animal cell is made up of several structure organelles enclosed in the plasma membrane, that enable it to function properly, eliciting mechanism that benefit the host (animal). The working together of all cells gives an animal it's ability to move, to reproduce, to respond to stimuli, to digest and absorb food, etc. Generally, the combined effort by all animal cells is what enables the normal functioning of the body.  Eukaryotes are organisms consisting of one or more eukaryotic cells, such cells contain...
Read more

Carbohydrates

-
Image
• Carbohydrate:- Carbohydrates, or carbs, are sugar molecules. Along with proteins and fats, carbohydrates are one of three main nutrients found in foods and drinks. Your body breaks down carbohydrates into glucose.  • CARBOHYDRATE : °Classification:- monosaccharides ,  disaccharides ,  oligosaccharides , and  polysaccharides —used here is among the most common. Two molecules of a simple sugar that are linked to each other form a  disaccharide , or double sugar. The disaccharide  sucrose , or table sugar, consists of one molecule of glucose and one molecule of fructose; the most familiar sources of sucrose are  sugar beets  and cane sugar. Milk sugar, or  lactose , and maltose are also disaccharides. Before the energy in disaccharides can be  utilized  by living things, the molecules must be broken down into their respective monosaccharides.  Oligosaccharides , which consist of three to six monosaccharide units, are rather inf...
Read more

RDA

-
    Recommended Dietary Allowance Recommended Dietary Allowance is the average daily dietary intake level that is sufficient to meet the the nutrients requirement of nearly all(97to98) percent healthy individual in a particular gender and life stage group (life stage consider age and when applicable pregnancy or lactation.)  Factors that affecting RDA: Age, sex, height, weight, geographical location, availability of food, economic status, physical activity.  Limitations of RDA: 1) No RDA for every nutrient.  2) Food analyses differ.  3) Not user friendly for public.  4) No data for fiber, cholesterol, fat.  5) Does not meet needs of those with increased demands or illness.  6) Prevent deficiency not promote health.    Uses of RDA: 1) To provide basis for food distribution quota.  2) To guide agriculture planning policy.  3) To guide policy of food export and import.  4) Basis for all feeding program.  5) To und...
Read more