Share. Intrinsic factor is the most obscureâyet the most importantâglycoprotein in the human body. It has only one primary function that is essential for good health. Produced by the parietal cells of the stomach as well as the salivary glands, intrinsic factor has a brief, but very important life.Intrinsic factor is key for supporting energy, metabolism, and mental health by working with one nutrientâvitamin B12.ntrinsic factor is the most obscureâyet the most importantâglycoprotein in the human body. It has only one primary function that is essential for good health.
Types of Bike Helmets. There are three types of bike helmets: recreational, road and mountain. Recreational bike helmets may also be called multi-use or casual helmets. All three of these types have the same purpose which is to protect your head from impact and injury in the event of an accident.
D.C. law requires all motorcycle operators and passengers to wear helmets of a type approved by the Director of the Department of Motor Vehicles. At a minimum, the helmet must meet The American National Standards Institute (ANSI) Specifications for Protective Headgear for Vehicle Users, Standard Z90-.1-1966.