Since when do simbiotes live in heads?

[Skydiver]

as he himself said, he was also high on pain killers

and, daniel's medical issue is a topic for another thread. This is for symbiotes and where they reside in the human body

[Azreth]

Sci Fi science? I would think the symbiote can squish itself pretty small & so the extraction really squishes it--which is why it's a terrible experience for the goa'uld. And no picnic for the host. Didn't Vala say it was pretty bad for her?

Ok think of the Tok-Ra. They are very advanced. Also think of how persistant the goa'uld are about survival. Knowing these two things just thinking that a symbiote can be extracted with a seringe says that you dont know much of the series. Would it be more logical that it was more of a mini-teleportation device, and the point that goes in the head of the host is not so much of a seringe as an amplifier or a targeter for the symbiote.

[Prior_of_the_Ori]

Ok think of the Tok-Ra. They are very advanced. Also think of how persistant the goa'uld are about survival. Knowing these two things just thinking that a symbiote can be extracted with a seringe says that you dont know much of the series. Would it be more logical that it was more of a mini-teleportation device, and the point that goes in the head of the host is not so much of a seringe as an amplifier or a targeter for the symbiote.

Finally someone mentions this. I've been thinking about this for quite a while but didn't want to post until I saw the movie which was yesterday. Personally, I think the same that it was a mini-transporter designed to pierce the skin and beam the symbiote out. One has to remember that the Tok'ra don't have Asgard technology so they have to make do with what they have,

[Amalthea]

I pretend like the syringe had some kind of anesthesia in it so the snake was put to sleep so he couldn't kill the human during the extraction process. From there, it was beamed into that little jar. This way, it's slightly more believable!