Three kinds of freely movable joints play a big part in voluntary movement: 1  Hinge joints allow movement in one direction, as seen in the knees and elbows. 2  Pivot joints allow a rotating or twisting motion, like that of the head moving from side to side. 3  Ball-and-socket joints allow the greatest freedom of movement.
Because narrow is the gate, and narrow is the way, which leads unto life, and few there be that find it. American King James Version Because strait is the gate, and narrow is the way, which leads to life, and few there be that find it.
For technical meanings of width in mathematics, see Width (disambiguation). For other uses, see Length (disambiguation). In geometric measurements, length is the most extended dimension of an object. In the International System of Quantities, length is any quantity with dimension distance.