While research on the long-term health effects of marijuana use and Tetrahydrocannabinol or THC have only just begun, the cannabis plant itself has been thoroughly studied. The anatomy of the plant is well-known; the iconic five-leaf plant is easily recognizable in popular culture. The science of growing and processing the cannabis plant is also well documented and studied, giving both businesses and medical dispensaries innumerable ways to utilize the plant. On a chemical level, we know how THC affects the human brain and can even synthesize those same chemicals in a lab. Consider this your Cannabis 101 class – the science behind the plant.