It seems like there may be a typo in your question. If you mean "synovial membrane," it is a thin layer of tissue that lines the joint capsules and produces synovial fluid, which lubricates and nourishes the joints. This membrane helps reduce friction between the bones during movement.
Thylakoids
Synovial fluid bathes joints, providing 'cushioning' from shock and also the passage of essential nutrients to the joint.
YES IT CAN KILL YOU!!!! OTHER EFFECTS ARE: INFERTILITY IN MENBRAIN DAMAGE,LUNG DAMAGE,NASAL DAMAGE,IT CAN GET YOU ARRESTEDAND A CRIMINAL RECORD
The main function of the cell membrane is to regulate the movement of substances in and out of the cell. It acts as a barrier that allows essential molecules to enter the cell while keeping harmful substances out. Additionally, cell membranes also help maintain the cell's shape and provide structural support.