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Digestive System Overview

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Questions and Answers

What is the medical term for the digestive tract?

Gastrointestinal tract (correct)
Enteral tract
Alimentary canal
Digestive tube

Which organ is not part of the small intestine?

Duodenum
Gallbladder (correct)
Jejunum
Ileum

What is the function of the pharynx in the digestive system?

Absorb nutrients
Secrete digestive juices
Digest food
Move food from mouth to esophagus (correct)

What is the term for the process by which the teeth chew food in the mouth?

Mastication (B) Signup and view all the answers

What is the approximate duration for food to travel the length of the digestive tract?

24 - 36 hours (A) Signup and view all the answers

Which organ does not belong to the digestive system?

Kidney (B) Signup and view all the answers

What is the function of mucus in the digestive tract?

To coat and protect the lining of the digestive tract (A) Signup and view all the answers

Which type of digestion involves the mastication and mixing of food?

Mechanical digestion (C) Signup and view all the answers

What is the function of enteric sensory neurons in the digestive tract?

Detect changes in the chemical composition of digestive tract contents or detect mechanical changes (B) Signup and view all the answers

Which neurotransmitter stimulates digestive tract motility and secretions?

Acetylcholine (D) Signup and view all the answers

Which hormone helps regulate many digestive tract functions?

Gastrin (D) Signup and view all the answers

What does the process of absorption involve?

Moving molecules out of the digestive tract and into the blood or lymphatic system (A) Signup and view all the answers

What is the primary function of segmental contractions in the small intestine?

To propel food by moving it back and forth within the digestive tract (D) Signup and view all the answers

What is the function of liver secretions in digestion?

Break down large lipids into much smaller droplets (C) Signup and view all the answers

What is Hirschprung disease primarily caused by?

Absence of enteric neurons in the distal large intestine (C) Signup and view all the answers