Actions
Opposition of the thumb is a combination of actions that allows the tip of the thumb to touch the tips of other fingers. The part of opposition that this muscle is responsible for is the flexion of the thumb's metacarpal at the first carpometacarpal joint. This specific action cups the palm. Many texts, for simplicity, use the term opposition to represent this component of true opposition. In order to truly oppose the thumb, the actions of a number of other muscles are needed at the thumb's metacarpophalangeal joint.
Read more about this topic: Opponens Pollicis Muscle
Famous quotes containing the word actions:
“The first glance at History convinces us that the actions of men proceed from their needs, their passions, their characters and talents; and impresses us with the belief that such needs, passions and interests are the sole spring of actions.”
—Georg Wilhelm Friedrich Hegel (1770–1831)
“Virtue is relative to the actions and ages of each of us in all that we do.”
—Plato (c. 427–347 B.C.)
“Because impudence is a vice, it does not follow that modesty is a virtue; it is built upon shame, a passion in our nature, and may be either good or bad according to the actions performed from that motive.”
—Bernard Mandeville (1670–1733)