If I'm not mistaken I believe that for this movement to happen there are two muscles that need to be used- because muscles work in pairs.
For this particular movement I am sure that the Agonist muscle (prime mover), the muscle that relaxes, is the Bicep.
And the Antagonist, the muscle that contracts, is the Tricep.
maybe it mean someone will have argument with you! .................................................................................................. It means the finger and nose came in contact with Each other.
lexion. It decreased the angle of the joint
Finger extension
Fingerprint.
muffling
if somebody were to cut my finger and use it to take my cash from an ATM
Just stick your middle finger up at them
It's an insult like the middle finger.
It is ok it will happens when somebody shocks you
You can ignore it. You choose to be offended or not.
When Helen touches her cheek she wants to feel the sensation of her finger moving across it. She is trying to understand how it feels to be touched even if it is by herself.
In American Sign Language, the sign for "me" is made by pointing to your chest with your index finger.