Rotarod Method Quiz
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Questions and Answers

Who first suggested the use of the Rotarod method for evaluating skeletal muscle relaxation induced by a test compound?

  • Davis and Wilson
  • Roberts and Brown
  • Smith and Johnson
  • Dunham and Miya (correct)
  • What is the purpose of the Rotarod method?

  • To measure the heart rate of mice and rats
  • To determine the visual acuity of mice and rats
  • To evaluate the activity of drugs interfering with motor coordination (correct)
  • To assess the respiratory function of mice and rats
  • What is considered the endpoint of the Rotarod method?

  • The dose which impairs the ability of 50% of the mice to remain on the revolving rod (correct)
  • The total time a mouse can remain on the revolving rod
  • The speed of the revolving rod
  • The number of rotations per minute
  • At what height is the rod placed above the table top in the Rotarod apparatus?

    <p>About 50 cm</p> Signup and view all the answers

    What is the diameter of the wooden or metal rod used in the Rotarod apparatus?

    <p>3 cm</p> Signup and view all the answers

    Study Notes

    Rotarod Method Overview

    • The Rotarod method was first suggested by researchers to evaluate skeletal muscle relaxation induced by a test compound.
    • It measures the effects of compounds on muscle function through a controlled environment.

    Purpose of the Rotarod Method

    • Designed to assess motor coordination and balance in subjects following administration of test substances.
    • Provides insights into neuromuscular function, particularly in pharmacological studies.

    Endpoint of the Rotarod Method

    • The endpoint is defined when a subject falls off the rod, indicating muscle relaxation or impairment of motor skills.
    • Duration of time before falling is recorded to assess efficacy.

    Rod Height in Rotarod Apparatus

    • The rod is placed at a height of approximately 50 centimeters above the table top for adequate testing conditions.
    • Ensures a standard measurement setup for all test subjects.

    Diameter of the Rod

    • The wooden or metal rod used in the Rotarod apparatus typically has a diameter of 3 centimeters.
    • Standardized dimensions are critical for consistent results across different experiments.

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    Description

    Test your knowledge of the Rotarod Method and its application in evaluating the effects of drugs on motor coordination with this quiz. Explore the history, purpose, and rationale behind this widely used method in preclinical research.

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