Frog Dissection Techniques
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Questions and Answers

What is the purpose of pithing the frog according to the text?

  • To test the frog's sensitivity to pain
  • To stimulate reflex and voluntary movements during dissection
  • To observe the frog's reaction to external stimuli
  • To destroy the brain and spinal cord for pain relief during dissection (correct)

What is the purpose of stunning the frog described in the text?

  • To prepare it for a dissection
  • To observe its voluntary movements
  • To render it unconscious (correct)
  • To test its reflexes

What is the recommended method to render the frog unconscious?

  • Administer anesthetic medication
  • Hold the frog gently and give a blow on its head with a wooden mallet (correct)
  • Use an electric shock to render it unconscious
  • Place the frog in a dark environment

Where should the pithing needle be inserted to destroy the brain and spinal cord of the frog?

<p>Into the spinal canal, at a point where a line joining the posterior borders of tympanic membranes cuts the middle line (D)</p> Signup and view all the answers

Study Notes

Pithing the Frog

  • Pithing is a method to render the frog unconscious and kill it humanely
  • The purpose of pithing is to destroy the brain and spinal cord of the frog
  • Stunning the frog is necessary before pithing to ensure it does not feel pain

Pithing Technique

  • The recommended method to render the frog unconscious is to insert a pithing needle into the frog's brain and spinal cord
  • The pithing needle should be inserted through the frog's mouth or nostrils to effectively destroy the brain and spinal cord

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Description

Learn about stunning and pithing techniques for frog dissection. Understand the process of rendering the frog unconscious and destroying its brain and spinal cord to minimize pain and reflex movements during dissection.

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