Remember general biology when we dissected animals that had been fermented in formaldehyde? The animals that we dissect in physiology labs are quite... alive. It was nearly as bad as dissecting a live earthworm (which I had to do two years ago). At least frogs don't have the ability to voluntarily detach portions of their body that are pinned down to the dissection tray. Needless to say, one whole squirming earthworm turned into 5 pieces of squirming earthworm body parts.
The heart of our frog was still beating when we cut it open. If you have any qualms about dissections, blood, guts, beating hearts, or animal cruelty, don't scroll down any further.
Here's a video of the beating heart of my friend's frog. Everything is the same except that their frog's heart is just about 6 times the size of our frog's heart. It's got to be on steroids.
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The apparatus that we had to string the frog's heart on. It measured the frequency and amplitude of the heart beat. |
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Our frog. |
The lab experiment itself was kind of cool (in a sick, sadistic way).
Next up, extracting the frog's sciatic nerve.
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