Labeled Diagram Of Digestive System

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Solution

a)

i). Food is crushed and cut in the mouth with the help of teeth and is mixed with saliva that is secreted by 3 salivary glands(one below the tongue and two at the side of the jaw) to make it wet and slippery, this process is known as mastication.

(two) Saliva contains amylase that breaks down complex carbohydrates and the natural language helps in pushing the food to the next part of the gastrointestinal tract.

(iii) The soft food then passes through the esophagus in a wave-like motility known every bit a peristaltic motility.

(iv) In the breadbasket, food mixes with gastric juices and dil. HCl. The food is cleaved downwardly into simple substances with the assistance of digestive enzymes like pepsinogen, while mucus protects the walls of the stomach.

(v) From the stomach, the food moves into the small intestines with the help of band-like muscles called pyloric sphincters which allow only a little food to pass through at a time.

(vi) In the pocket-size intestine, the carbohydrates, proteins, and fats are broken down with the help of juices secreted by the pancreas, liver, and the small intestine itself.

(vii) Fat is converted into small-scale globule-like forms with the aid of bile juices from the liver. This process is known every bit emulsification.

(viii) Pancreatic juices incorporate trypsin enzyme that breaks down proteins and lipase that breaks down fats.

(nine) The afterwards part of the small-scale intestines is alkaline in nature and helps in the digestion of carbohydrates.

(ten) The jerry-built nutrient is and then absorbed by small projections present on the within walls of the intestine called villi. Villi are surrounded by blood and lymph vessels that absorb the food and send information technology to the rest of the body.

(xi) Finally, the food moves into the large intestine where most of the water is removed from the food and is then passed out of the body through the anus.

Part b: Absorption of nutrient in intestine:

The pocket-size intestine has small finger-similar projections chosen villi (this increases the surface surface area for the absorption of food materials), which is highly supplied with blood vessels.

Equally food passes through the modest intestine, it is captivated through the villi and enters the blood vessels, through which it is distributed to all parts of the body.

Part c: Peristalsis:

Peristalsis is the specific name given to the nutrient motion in the trunk.

The peristaltic movement besides chosen peristalsis refers to the contraction and relaxation of the food in the esophagus and the food pipage and the food is forced down the track to the stomach.

This movement is involuntary and is necessary for the move of nutrient downwardly the stomach and bowels downwards the anus.

Source: https://byjus.com/question-answer/a-draw-a-labelled-diagram-of-the-human-digestive-system-with-the-help-of-this/