The Water Cycle: The U.S. Geological Survey explains what the water cycle is and where water comes from. Animated Water Cycle: This animated water cycle diagram allows kids to click on different parts of the cycle to see how water changes form and moves.
The neuromuscular junction (NMJ) is the site of communication between motor nerve axons and muscle fibres. It is composed of four specialised cell types: motor neurons, Schwann cells, muscle fibres and the recently discovered kranocytes.
(Devicâs syndrome). Neuromyelitis optica, sometimes called NMO, is a rare yet severe inflammatory process of the central nervous system. The condition mainly affects the spinal cord and the optic nerves, or the nerves that carry signals from the eyes to the brain.As a result, the disease can cause paralysis and blindness.euromyelitis optica, sometimes called NMO, is a rare yet severe inflammatory process of the central nervous system.