3 Tongue Questions

Why are all the other organs of the body in an upright posture but the tongue is in a laying position ?
Many organs are on the outside but this is in the mouth ?
Why are there 2 barriers surrounding the tongue ?

These 3 questions are all in the Talmud Erchin 15b , 8 lines down.
One answer for all...
Now may be a good time for a gem of Torah study.
www.GemsofTorah.com