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.
The TMJ Association, Ltd. (TMJA) is the leading national resource for information on temporomandibular disorders (TMD). For over 25 years the TMJA has been raising awareness of TMJ problems, expanding research, advocating for safe and effective treatments, and providing support to TMJ patients and their loved ones.