Anatomy & Physiology Gastrointestinal #14

Question

Which structure transports a greenish-brown alkaline fluid that aids digestion from the liver to the gallbladder for storage?

Answers

  1. Parotid duct
    • Rationale:

      The parotid duct is the passageway through which saliva enters into the mouth. It is not the passageway through which bile is transported from the liver to the gallbladder.

  2. Common bile duct
    • Rationale:

      The common bile duct is responsible for the transportation of bile from the liver to the gallbladder. Once in the gallbladder, bile is then transported to the small intestine.

  3. Submandibular duct
    • Rationale:

      The submandibular, or submaxillary, duct drains saliva for chemical digestion to begin in the mouth. It is not the passageway through which bile is transported from the liver to the gallbladder.

  4. Major sublingual duct
    • Rationale:

      The major sublingual duct opens into the submandibular duct to drain saliva into the mouth to begin the process of chemical digestion. It is not the passageway through which bile is transported from the liver to the gallbladder.

Overview

A duct is a tube or passageway that transports a substance from one structure to another within the body.

Explanation

Learning Outcomes

Bile, a greenish-brown alkaline fluid, is produced in the liver and stored in the gallbladder. It is used within the digestive tract to break down fats for use within the body. Bile is transported from the liver to the gallbladder via the common bile duct.

Test Taking Tip

Consider the structure and function of each choice to answer this question correctly.

Video Rationale