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WorksheetsGI 1. 1ST PART
Total questions: 26
Worksheet time: 13mins
What is the primary function of the GI tract?
To absorb toxins
To produce hormones
To digest food and absorb nutrients
To filter blood
Which of the following is NOT a major activity of the digestive system?
Absorption
Defecation
Ingestion
Respiration
What process moves food along the GI tract?
Peristalsis
Defecation
Ingestion
Absorption
What is mechanical digestion?
Chemical breakdown of food
Chewing and mixing food
Elimination of waste
Absorption of nutrients
Where does chemical digestion begin?
In the mouth
In the small intestine
In the large intestine
In the stomach
What is the role of the mucosa in the GI tract?
To absorb nutrients
To protect against wear
To secrete hormones
To regulate blood flow
Which organ is NOT part of the GI system?
Stomach
Liver
Small intestine
Heart
What is the function of the sphincters in the GI tract?
To filter toxins
To regulate movement between segments
To absorb nutrients
To produce enzymes
What is the primary role of the salivary glands?
To digest proteins
To produce bile
To absorb nutrients
To secrete saliva
What is the function of the tongue in digestion?
To help with swallowing
To secrete enzymes
To grind food
To absorb nutrients
What is the main purpose of the stomach?
To absorb nutrients
To mix and hold food
To filter waste
To produce saliva
Which phase of digestion occurs before food is eaten?
Intestinal phase
Gastric phase
Cephalic phase
Digestive phase
What does the enteric nervous system do?
Controls heart rate
Regulates GI function
Produces hormones
Stimulates muscle growth
What is the role of hormones in GI function?
To absorb nutrients
To regulate digestion
To produce enzymes
To filter toxins
What is the function of the liver in digestion?
To absorb nutrients
To secrete saliva
To produce bile
To grind food
What is the primary function of the large intestine?
To absorb nutrients
To digest proteins
To eliminate waste
To produce enzymes
What is the role of the pancreas in digestion?
To filter toxins
To absorb nutrients
To produce digestive enzymes
To grind food
What is segmentation in the digestive process?
Local constriction in the intestine
Breaking down food chemically
Moving food along the GI tract
Mixing food in the stomach
What is the main purpose of the peritoneum?
To produce enzymes
To cover digestive organs
To absorb nutrients
To filter waste
What is the function of the anal sphincters?
To produce bile
To absorb nutrients
To regulate waste elimination
To grind food
The gastric mucosa contains specialized cells that secrete hydrochloric acid. What are these cells called?
Goblet cells
Parietal cells
Chief cells
Enteroendocrine cells
What is the primary function of the lower oesophageal sphincter (LES)?
Facilitate bolus movement
Prevent air from entering the stomach
Prevent reflux of stomach contents into the oesophagus
Aid in nutrient absorption
What is the primary function of the pharynx?
Digestion
Respiration
Both a and b
None of the above
What is the role of bile in digestion?
To absorb nutrients
To emulsify fats
To grind food
To produce enzymes
What is the primary function of the small intestine?
To absorb nutrients
To store waste
To produce bile
To digest carbohydrates
What is the significance of the villi in the small intestine?
To filter toxins
To regulate blood flow
To produce digestive enzymes
To increase surface area for absorption
