An interesting fact is that growers prefer sensimilla which is the name for cannabis plants that are not pollinated and do not have seeds. The structure of the female flower that is called glandular trichome produces resin on the flowers and leaves close to them.
A flexed knee is at about 140 degrees. It is a common misconception that 0-140 degrees is a normal range of motion, but most people have some hyperextension, too, taking their ROM into negative numbers. 1  normal ROM is usually minus 5 to 143 degrees in women.
In the front of the thigh the quadriceps muscles extend the knee joint. In the back of the thigh, the hamstring muscles flex the knee. The knee also rotates slightly under guidance of specific muscles of the thigh. The knee functions to allow movement of the leg and is critical to normal walking. The knee flexes normally to a maximum of 135 degrees and extends to 0 degrees.