To provide a specific answer, I need to know which regions you are referring to, as the body can be divided into various regions (such as the abdominal quadrants, thoracic regions, etc.). For example, in the abdominal regions, the right upper quadrant contains the liver and gallbladder, while the left lower quadrant includes parts of the intestines and the left ovary in females. Please clarify the regions you want information about!
Pelvis is a region of the human body.
Tail of the pancreas and part of the stomach
Spleen and stomach
yes
An organ is more than one type of tissue working together to accomplish a certain function.
The small intestines are in this region.
Vasdefrines, there are around thirty feet of these springlike tubes in each normal male.
bladder
Yes. It is the intestinal region, therefore it is an organ.
Appendix
No. The collection of organs is organ system.
Pelvis is a region of the human body.
There is no such thing as an "organ of muscles".
Well apart from the liver and heart you do have two of each organ.
Each organ does a certain part in the organ system. An organ system is a group of organs doing the same job.
the right portion of the liver
Tail of the pancreas and part of the stomach