Question

explain the structure of digestive system​

Answer 1

Answer:

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By the end of this section, you will be able to:

• The function of the digestive system is to break down the foods you eat, release their nutrients, and absorb those nutrients into the body. Although the small intestine is the workhorse of the system, where the majority of digestion occurs, and where most of the released nutrients are absorbed into the blood or lymph, each of the digestive system organs makes a vital contribution to this process.As is the case with all body systems, the digestive system does not work in isolation; it functions cooperatively with the other systems of the body. Consider for example, the interrelationship between the digestive and cardiovascular systems. Arteries supply the digestive organs with oxygen and processed nutrients, and veins drain the digestive tract. These intestinal veins, constituting the hepatic portal system, are unique; they do not return blood directly to the heart. Rather, this blood is diverted to the liver where its nutrients are off-loaded for processing before blood completes its circuit back to the heart. At the same time, the digestive system provides nutrients to the heart muscle and vascular tissue to support their functioning. The interrelationship of the digestive and endocrine systems is also critical. Hormones secreted by several endocrine glands, as well as endocrine cells of the pancreas, the stomach, and the small intestine, contribute to the control of digestion and nutrient metabolism. In turn, the digestive system provides the nutrients to fuel endocrine function. Table 1 gives a quick glimpse at how these other systems contribute to the functioning of the digestive system.

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Answer 2

DIGESTIVE SYSTEM

The nutrition takes place through digestive system. the digestive system consists of the alimentary canal and its associated glands. the various organs of the digestive system in sequence are

• mouth
• oesophagus
• stomach
• small intestine
• large intestine

glands which are associated with the digestive system and form a part of the digestive system are

• salivary glands
• liver
• pancreas

the depth of various glands open into the alimentary canal and for the secretions of the digestive juices into the alimentary canal .