Respiratory System. Several organs of the respiratory system are responsible for the process of breathing. The nose, pharynx, larynx, trachea, bronchi, and lungs work together to allow gas exchange to occur at the cellular level.
Our glands produce heat, which can cause a fever for us. The body system that produces the most body heat within us is our sweating system. Our glands produce heat, which can cause a fever for us. The body system that produces the most body heat within us is our sweating system.
Muscles are complex structures that cause movement in the body. There are three types of muscle in the body: 1  Heart muscle pumps blood (cardiac muscle).  Skeletal muscle moves the external body parts, like the arms and legs, neck, back, trunk, and the face.