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.
Temporomandibular joint (TMJ) disorders are a group of medical conditions that cause the jaw joint (called the temporomandibular joint or TMJ) to be sore and painful. The TMJ connects the lower jaw, called the mandible, to the temporal bone of the skull, which is located in front of the ear on both sides of the head. The TMJ allows the jaw to move up and down and side to side. These movements are important for many functions, including talking, chewing food, and yawning.