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YouTube has videos on IM injections but it's the set up with which needle is for drawing out of the vial and which is for injecting - the green needle looks thicker, so I'm guessing that's the one for drawing up

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Injection of local anesthetic deep to this sheath (but outside the epineurium of the tibial or common peroneal nerves) has been shown to spread a considerable distance proximally and distally, and result in a rapid onset, dense block

Finally, Bacteroidetes relative abundance was significantly increased in 5A-1MQ-treated mice switched from WD to LD relative to WD control mice (Fig

Its a complete system