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Multiple Choice
Which of the following statements is NOT correct regarding the stomach?
A
The stomach has a muscular wall that helps in mechanical digestion.
B
The stomach secretes hydrochloric acid to aid in digestion.
C
The stomach is responsible for the initial digestion of proteins.
D
The stomach is primarily involved in the absorption of nutrients.
Verified step by step guidance
1
Understand the primary functions of the stomach: The stomach is mainly involved in the mechanical and chemical digestion of food, particularly proteins, through the secretion of gastric juices, including hydrochloric acid and enzymes like pepsin.
Identify the role of the stomach in mechanical digestion: The muscular walls of the stomach contract to mix and churn the food, breaking it down into smaller pieces, which is a process known as mechanical digestion.
Recognize the chemical digestion process in the stomach: The stomach secretes hydrochloric acid, which creates an acidic environment that activates digestive enzymes such as pepsin, crucial for the initial digestion of proteins.
Clarify the misconception about nutrient absorption: While the stomach plays a significant role in digestion, it is not primarily responsible for the absorption of nutrients. Most nutrient absorption occurs in the small intestine.
Evaluate the statements: Compare each statement with the known functions of the stomach. The statement that the stomach is primarily involved in the absorption of nutrients is incorrect, as this is not its main function.