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The esophagus is part of the ___________.

  1. A
    endocrine system
  2. B
    digestive system
  3. C
    respiratory system
  4. D
    nervous system

Topic Flashcards

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Question

Which body system includes the esophagus as a primary structure?

Answer

Digestive system — the esophagus is the muscular tube that carries swallowed food from the throat to the stomach through peristaltic contractions.

Question

What is the main role of the esophagus in human anatomy?

Answer

Transports food and liquids from the pharynx to the stomach — it is lined with stratified squamous epithelium and uses smooth muscle for involuntary propulsion.

Question

Of the endocrine, digestive, respiratory, and nervous systems, which one contains the esophagus?

Answer

Digestive system. It is part of the alimentary canal (GI tract); endocrine involves glands/hormones, respiratory handles air/gas exchange, nervous controls signals.

Question

Why is the esophagus not part of the respiratory system?

Answer

It transports food, not air; the trachea and bronchi are for respiration — the esophagus lies posterior to the trachea and shares a common entry (pharynx) but diverges at the larynx.

Question

How does the esophagus contribute to digestion?

Answer

It mechanically moves bolus (chewed food) to the stomach via peristalsis; no chemical digestion occurs there, but it delivers food for gastric processing.

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Is the esophagus a key component of the digestive system?
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