Digestive System Overview
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Questions and Answers

What is the first step of the digestive process?

  • Absorption
  • Ingestion (correct)
  • Elimination
  • Digestion

Nutrients are absorbed in the stomach.

False (B)

What chemical helps break down food in the stomach?

hydrochloric acid

Food is pushed towards the __________ after being chewed.

<p>esophagus</p> Signup and view all the answers

Match the digestive process with its correct description:

<p>Ingestion = Food is taken in through the mouth Digestion = Food is broken down mechanically and chemically Absorption = Nutrients are moved into blood Elimination = Solid wastes come from the digestive system out of the body</p> Signup and view all the answers

Flashcards

Ingestion

The process of taking food into the mouth.

Digestion

The process of breaking down food into smaller molecules.

Absorption

The process of moving nutrients from the digestive system into the bloodstream.

Elimination

The process of removing waste products from the digestive system.

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Peristalsis

Muscular contractions that help move food through the digestive system.

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Study Notes

Digestive System Overview

  • Ingestion: Food enters the mouth
  • Digestion: Mechanical and chemical breakdown of food
  • Absorption: Nutrients are absorbed into the bloodstream
  • Elimination: Waste removal from the body

Ingestion

  • Food is taken into the mouth
  • Tongue and teeth mechanically break down food
  • Saliva begins chemical breakdown
  • Food swallowed and enters the esophagus

Digestion

  • Stomach: Muscular contractions and acids (like hydrochloric acid) further break down food
  • Small intestine: Continues digestion and absorbs majority of nutrients
  • Enzymes and other chemicals break down food

Absorption

  • Nutrients absorbed into the bloodstream from the small intestine
  • Key nutrients enter bloodstream for body use

Elimination

  • Undigested food moves to the large intestine
  • Water and remaining nutrients are absorbed
  • Solid waste (feces) forms
  • Feces stored in the rectum, then eliminated through the anus

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Description

Explore the essential functions of the digestive system including ingestion, digestion, absorption, and elimination of food. This quiz covers how food is processed in the body and the roles of various organs involved. Test your knowledge on the journey of food from mouth to waste.

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