… (Medical/Anatomical FYI:)

…
"There are over 50 different 'SPHINCTERS' in the human body."
(--Dr. Sheldon Cooper, 'The Big Bang Theory')

MUCH to the CHAGRIN of "Hanz & Franz" from old-school 'S.N.L.', the STRONGEST MUSCLE in the human body IS
…
the TONGUE.

It can actually lift up to 80 TIMES its own weight.  It's ALSO the "Wolverine"(--'X-Men') of the body, 'cuz it's the FASTEST-HEALING muscle.

(… In my "SPEECH-Therapy", I OFTEN do tongue-movement exercises to IMPROVE its DEXTERITY, FLEXIBILITY and MANEUVERABILITY.)

(… My next exercise-GOAL:
tongue-CURLS … with ONLY a 5-lb weight)


...