Mode of Action
In humans, it functions to constrict the pupil in bright light (pupillary reflex) or during accommodation.
Read more about this topic: Iris Sphincter Muscle
Famous quotes containing the words mode of, mode and/or action:
“There are a thousand hacking at the branches of evil to one who is striking at the root, and it may be that he who bestows the largest amount of time and money on the needy is doing the most by his mode of life to produce that misery which he strives in vain to relieve.”
—Henry David Thoreau (1817–1862)
“Sight is the least sensual of all the senses. And we strain ourselves to see, see, see—everything, everything through the eye, in one mode of objective curiosity.”
—D.H. (David Herbert)
“The action of the soul is oftener in that which is felt and left unsaid, than in that which is said in any conversation. It broods over every society, and they unconsciously seek for it in each other.”
—Ralph Waldo Emerson (1803–1882)