Traditionally, invitations go out six to eight weeks before the wedding -- that gives guests plenty of time to clear their schedules and make travel arrangements if they don't live in town. If it's a destination wedding, give guests more time and send them out three months ahead of time.
The human body is made up of several organ systems that all work together as a unit to make sure the body keeps functioning. There are ten major organ systems in the body, each of which plays a different role in helping the body work. This system is made up of the heart, blood, blood vessels, and lymphatics.
The Main Organs. The main organs of the nervous system are, the brain, the spinal cord and the nerves. Here is what each organs do and a picture. The brain functions to keep your memory. The brain is connected to most everything in your body. Information is sent from all body systems to the brain.