Select the correct answer. Which of the following joints is the most freely moveable joint in the body?
A.
Tibiofemoral joint
B.
Coxal joint
C.
Glenohumeral joint
D.
Elbow joint

The most freely movable joint in the body is glenohumeral joint.

Explanation:

The glenohumeral joint, also called the shoulder joint, is a mobile joint. It is formed by the union of the head of the humerus with the glenoid cavity of the scapula, an enarthrosis where a sphere fits into a concave surface, allowing a wide range of movement:

The glenohumeral joint is the most mobile joint in the human body, allowing the upper limb to perform almost any activity.

The other options are not correct, because:

    A and D. The tibio-femoral and elbow joints perform predominantly flexion and extension.

    B. The coxal is the pelvic bone, whose joints with the sacrum and between right and left coxal are not mobile.

when you rub, you also apply pressure, that pressure can urge the poop to come out. i think that when your rubbing, you also might be slightly breaking it up and that can further fill the stomach.