32 The chart below identifies the function of several organs found in a human body system.
Organ
Function
nose
moistens and filters air
lungs
gas exchange
diaphragm muscle that controls air intake
Which human body system performs these functions?
(1) skeletal (2) circulatory (3) digestive (4) respiratory

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.