Answer:
D. Spleen
Explanation:
The digestive system is a complex network of organs responsible for breaking down food into nutrients that our bodies can absorb and utilize. Let’s explore the components of this remarkable system:
Mouth: The journey begins here, where digestion starts even before you take a bite. Salivary glands become active as you see and smell food. Chewing breaks down the food into smaller pieces, and saliva helps begin the breakdown process.
Oesophagus: This muscular tube transports food from the mouth to the stomach.
Stomach: Here, food mixes with gastric juices, breaking it down further. The stomach’s acidic environment aids in digestion.
Small Intestine: The small intestine is a crucial part of the digestive system. It plays a central role in nutrient absorption. Enzymes and bile help break down food, and nutrients are absorbed into the bloodstream.
Large Intestine : The large intestine absorbs water and electrolytes. It also houses beneficial gut bacteria and forms feces.
Anus: The final stop! Solid waste (stool) is compacted and eliminated through bowel movements.
Additionally, assisting these GI organs are the pancreas, gallbladder, and liver
Now, let’s address the options:
A. Small Intestine: Definitely a part of the digestive system.
B. Rectum: Also a part of the system, where feces are stored before elimination.
C. Pharynx: The pharynx is involved in swallowing and directing food to the esophagus. It’s part of the digestive process.
D. Spleen: The spleen is not directly involved in digestion. Instead, it plays a role in immune function and blood filtration.
Therefore, the correct answer is D. Spleen. It is not a part of the digestive system.
