The somatic nervous system includes the sensory and motor nerves that innervate the limbs and body wall. Sensory nerve fibers in the peripheral nerves are the peripheral axonal process of neurons in the dorsal root ganglion.he somatic nervous system includes the sensory and motor nerves that innervate the limbs and body wall. Sensory nerve fibers in the peripheral nerves are the peripheral axonal process of neurons in the dorsal root ganglion.
Lightning damages the human body. It kills people directly close to trees or the ground. The kind of lightning that usually hits people is cloud to ground lightning. Lightning can affect all organs in the body. A lightning strike can give you cardiac arrest which is when your heart stops beating. Lightning can change the hearts rhythm but the heart usually resumes its normal heart rhythm. CPR can often revive these people.
In this video excerpt from NOVA: Earth From Space, learn about the global impact of lightning and how it produces an essential nutrient for living things. Satellite images show the distribution of electrical storms on Earth and the frequency of lightning strikes. Visualizations and narration describe the formation of lightning and its role in the production of nitrate, a vital nutrient for life. This video also explains how rain transports nitrate to the ground, where it is absorbed by plants and becomes a part of the food chain. This video is available in both English and Spanish audio, along with corresponding closed captions. Visit the program page here.