MRI has a tendency to overdiagnose PLC injury (4). In some cases it can be difficult to decide whether there is a burst fracture with a torn PLC or distraction with a torn PLC and a compression fracture (figure). You have to decide what you think is the main issue: the collapse of the vertebral body or the distraction.
Glowing in Several Colors. When fireflies give off light, they do so in a handful of different colors. These colors include vivid yellow, yellowish-orange, green and yellowish-green. Fireflies from different species often glow in different colors.
How Does a Firefly Make Its Light? July 9, 2015 by Karen Hill | Filed Under: Animals Sitting outside on summer evenings, you may have wondered how fireflies make those bright little flashes of light. To begin with, the firefly is not a fly, it is a beetle. And inside that beetleâs stomach are five chemicals. When oxygen enters the fireflyâs body, it stimulates a nerve reaction which causes those five chemicals to combine. This turns the light on. Several seconds later, another chemical combines with the others and turns the light off. Fireflies use their flashing lights as a mating signal. The male flies about at night, flashing his light. The female usually waits in the grass for the maleâs signal, then answers him by flashing her own light.