Parts and Functions of the Digestive System
Published:
I. Activity No. 1.3: Parts and Functions of the Digestive System
II. Objective(s): Describe the different parts and function digestive system
III. Materials Needed: Videos, Writing materials
IV. Instructions: Watch the videos assigned by your teacher and complete the table below.
| Part | Function | Movement (if any) | Type of Digestion |
| :--- | :--- | :--- | :--- |
| Alimentary Mouth | For breathing, eating, speaking | coordinated by joints, muscles | mechanical digestion and chemical digestion |
| Pharynx | | | |
| Esophagus | | | |
| Stomach | | | |
| Large Intestine | | | |
| Digestive Glands Pancreas | | | |
| Liver | | | |
| Salivary Glands | | | |
| Small Intestine | | | |
| Accessory Gall bladder | | | |
This question includes visual content: A table containing 11 rows representing parts of the digestive system (Mouth, Pharynx, Esophagus, Stomach, Large Intestine, Pancreas, Liver, Salivary Glands, Small Intestine, Accessory, Gall bladder) and 4 columns (Part, Function, Movement (if any), Type of Digestion). The Mouth row is partially filled with information about breathing, eating, speaking, joints, mechanical and chemical digestion.
Animated Video Solution
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Step by Step Written Solution
Hi Lovely, let's work through this table together to explore the parts and functions of the digestive system.
Digestive System: Parts and Functions
We will organize the parts into two groups: the Alimentary Canal, which is the long tube where food passes, and the Accessory Organs, which aid in digestion.
Part 1: Alimentary Canal
First, let's look at the mouth. As already noted in the table, it is used for breathing, eating, and speaking. Its movement involves joints and muscles for chewing. It performs both mechanical digestion through chewing and chemical digestion through enzymes in saliva.
| Part | Function | Movement | Type |
|---|---|---|---|
| Mouth | Breathing, eating, speaking | Joints and muscle coordination | Mechanical and Chemical |
Next is the pharynx. It serves as a common passageway for food and air. The primary movement here is swallowing. Since it just moves food along, there is no specific type of digestion happening here.
| Part | Function | Movement | Type |
|---|---|---|---|
| Pharynx | Passage for food and air | Swallowing | None |
Moving down to the esophagus, its main role is to transport food from the pharynx to the stomach.
| Part | Function | Movement | Type |
|---|---|---|---|
| Esophagus | Transports food to the stomach | Peristalsis | None |
The movement in the esophagus is called peristalsis, which is a wave-like muscle contraction that pushes food down.
Now for the stomach. This creates an acidic environment to break down proteins and churns food into a liquid called chyme.
| Part | Function | Movement | Type |
|---|---|---|---|
| Stomach | Breaks down food into chyme | Churning | Mechanical and Chemical |
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