Loading ...How Marijuana Works
The human brain relies upon neurotransmitters to conduct electrical impulses between neurons. These electrical impulses are responsible for guiding all human function, from involuntary acts such as respiration, to voluntary movements like walking. Cannabis interferes with the natural function of neurotransmitters.
The main psychoactive ingredient in Cannabis is a chemical called delta-9-tetrahydrocannabinol, THC for short. THC is very similar to some of the human body’s naturally occurring neurotransmitters. When marijuana is inhaled, THC passes from the lungs into the bloodstream. From there, it enters the brain. The THC stimulates cannabinoid receptors in the user’s central nervous system. Many of these receptors are present in the hippocampus, cerebellum and basal ganglia portions of the brain.
The hippocampus is responsible for memory, the cerebellum for coordination and the basil ganglia for involuntary muscle movement. Once artificially stimulated by THC, these areas stop functioning normally. As a result, short-term memory becomes impaired. Perceptions are distorted and hallucinations occur. Impaired cognitive function diminishes problem solving skills. Physical coordination is degraded and reflexes are delayed. The user’s heart rate increases, their pupils dilate and their muscles tremor.
Marijuana Tutorial: Page 11 of 21
