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:
“Piety practised in solitude, like the flower that blooms in the desert, may give its fragrance to the winds of heaven, and delight those unbodied spirits that survey the works of God and the actions of men; but it bestows no assistance upon earthly beings, and however free from taints of impurity, yet wants the sacred splendour of beneficence.”
—Samuel Johnson (1709–1784)
“Long ago I added to the true old adage of “What is everybody’s business is nobody’s business,” another clause which, I think, more than any other principle has served to influence my actions in life. That is, What is nobody’s business is my business.”
—Clara Barton (1821–1912)
“We should often be ashamed of our finest actions if the world understood all the motives behind them.”
—François, Duc De La Rochefoucauld (1613–80)