Marijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant, Cannabis sativa. The plant contains the mind-altering chemical delta-9-tetrahydrocannabinol (THC) and other related compounds.Extracts with high amounts of THC can also be made from the cannabis plant (see  Marijuana Extracts ).arijuana refers to the dried leaves, flowers, stems, and seeds from the hemp plant, Cannabis sativa. The plant contains the mind-altering chemical delta-9-tetrahydrocannabinol (THC) and other related compounds.
Quick Answer. The main function of the occipital lobe is to process the visual stimuli and information received from the eyes. According to About.com, this part of the brain is responsible for specific functions such as visual perception and color recognition. Continue Reading.
Occipital Lobe. THE OCCIPITAL LOBE encompasses the posterior. portion of the human cerebral cortex and is primarily. responsible for vision. The surface area of the human. occipital lobe is approximately 12% of the total. surface area of the neocortex of the brain. Direct. electrical stimulation of the occipital lobe produces.