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Digestive System Overview

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Questions and Answers

What is the main function of the salivary glands in the digestive system?

Protect the teeth from decay

Facilitate the passage of food through the esophagus

Absorb nutrients from food

Secrete enzymes for carbohydrate digestion (correct)

Which part of the throat is responsible for both respiration and digestion?

Nasopharynx

Laryngopharynx

Epiglottis

Oropharynx (correct)

What is the significance of the epiglottis in the digestive process?

It directs food to the trachea during swallowing

It closes off the windpipe to prevent food from entering (correct)

It secretes enzymes for protein digestion

It contracts to aid in peristalsis

Which function does the esophageal sphincter serve in the digestive system?

Prevents reflux of stomach contents into the esophagus Signup and view all the answers

What type of muscle contraction is primarily responsible for moving food through the esophagus?

Peristaltic contraction Signup and view all the answers

Which part of the digestive system is lined with stratified squamous epithelium?

Esophagus Signup and view all the answers

What is the function of chief cells in the stomach?

Secrete inactive pepsinogen Signup and view all the answers

What is the role of intrinsic factor in the digestive system?

Enhance absorption of vitamin B12 Signup and view all the answers

Which cells in the stomach secrete hydrochloric acid?

Parietal cells Signup and view all the answers

What is the primary function of somatostatin in the endocrine and exocrine systems?

Prevent hormone production Signup and view all the answers

Which digestive enzyme is secreted by the pancreas to help in the breakdown of fats?

Lipase Signup and view all the answers

What is the primary function of gastric cells that secrete gastrin?

Help in digestion Signup and view all the answers