07 May 2019

Biologic needles


Scanning electron microscope images of a viper’s fang, the fang of a spider, and the stinger of a scorpion (b, c, d).  On the far left for comparison is a modern hypodermic needle.  Via.

2 comments:

  1. i wonder which of those four makes for the smallest 'just a little pinch' from the phlebotomist? the animal ones all look nice and smooth?

    I-)

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    Replies
    1. Several decades ago many/most inner-city charity hospitals didn't have staff phlebotomists. They relied on the medical student to perform that service. Not surprisingly, the students were often referred to as "just a little prick with a needle."

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