Consider the following statements with refrence to Human digestive system 1 The largest structure of...........

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Consider the following statements with refrence to Human digestive system:

1. The largest structure of the digestive system is the gastrointestinal tract.

2. This starts at the mouth and ends at the anus, covering a distance of about nine metres.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 Nor 2

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Explanation:

Human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion (the tongue, salivary glands, pancreas, liver, and gallbladder). Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has many stages. The first stage is the cephalic phase of digestion which begins with gastric secretions in response to the sight and smell of food. The next stage starts in the mouth.