While basically any organ in your body has a function (aside perhaps of the appendix) the only "organ" in your arm that you could have removed without losing arm functions would be a lymphic node, which is part of your immune system.
Losing one of these nodes would lower the effectiveness of your immune system, but not cost you arm function.
It is a tentacle.
A Penis
Muscular and Skeletal
the bladder and lungs because they are not needed in the afterlife
The Lungs
The church organ
Not necessarily. Your biceps are not an organ, just muscle. Your arm isn't an organ, just a limb.
Just does. Deal with it.
It is a tentacle.
your mouth
The liver is an organ of the digestive system, it produces the chemicals needed for digestion.
Small Intestine
A Penis
Muscular and Skeletal
Answer Is an Organ. Such as the Heart or Lungs. Is an organ system.
The humerus bone is the one in your upper arm, and it is needed when you want to move your arm.
produce the many sounds needed for language.