internal fixation includes the use of pins, screws, staples, rods, and plates that are inserted into the bone to maintain alignment. when the fractured bone is in good alignment so that no manipulation is necessary, internal fixation may be used to stabilize the bone without any fracture reduction being performed.
What you see is only what you see. May 22, 2015. Color perception is an ancient and active philosophical problem. Itâs an instance of the wider category of sensory perception, but since the color spectrum fits on a single line (unlike, say, touch and taste), it has always been of particular interest.
Color can be thought of as a psychological and physiological response to light waves of a specific frequency or set of frequencies impinging upon the eye. An understanding of the human response to color demands that one understand the biology of the eye. Light that enters the eye through the pupil ultimately strikes the inside surface of the eye known as the retina. The retina is lined with a variety of light sensing cells known as rods and cones.