Digestive System: The Stomach

What is the main focus of the last free video in the digestive system series?

• The stomach

• The small intestine

• The liver

• The pancreas

What is the function of the peritoneum in the abdominal cavity?

• To allow organs to slide past each other

• To aid in digestion

• To protect the heart

• To store fat

Where is the stomach located in the abdominal cavity?

• Lower right quadrant

• Upper left quadrant

• Lower left quadrant

• Upper right quadrant

Which muscle separates the thoracic cavity from the abdominal cavity?

• The esophagus

• The diaphragm

• The pyloric sphincter

• The cardiac sphincter

What are the two curvatures of the stomach called?

• Medial and lateral curvatures

• Anterior and posterior curvatures

• Upper and lower curvatures

• Greater and lesser curvatures

Which region of the stomach is known as the 'gatekeeper'?

• Cardiac region

• Fundus region

• Body region

• Pyloric region

What is the primary function of hydrochloric acid in the stomach?

• To absorb nutrients

• To digest carbohydrates

• To store bile

• To activate enzymes and kill bacteria

Which enzyme in the stomach is responsible for protein digestion?

• Amylase

• Lipase

• Pepsin

• Trypsin

What was the previously believed cause of ulcers before the discovery of H. pylori?

• Genetic factors

• Viral infection

• Spicy food and stress

• Bacterial infection

What is the pH level of hydrochloric acid in the stomach?

• 0.8

• 7.0

• 5.5

• 3.5