The kidneys, bladder, and ureters are organs which belong to the system.

The esophagus, large intestine, and stomach are organs which belong to the system.

Tenderness in the tight upper quadrant (RUQ) might indicate problems with the .

The two systems usually controlled by negative feedback mechanisms are the nervous and system.

The organ system to which the skin belongs is the system.

Harmful waste products are discharged into the environment by the process of .

The cardiovascular system is made up of structural units called .

At the chemical level of organization, atoms interact to form .