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.
What are the human organs and their function? BLADDER: A hollow muscular organ that stores urine before expelling it from the body. BONES - The bones provide 5 functions. They protect other vital organs, i.e. ribs protect the lungs. Support the body in an upright position. They are attached to muscles to help provide movement of the body. Bone marrow produces blood. Store salts inside provides a mineral reservoir for the body.