The ___________ is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.
The ___________ is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. When the muscle relaxes, the chest cavity decreases and the air is pushed out.
The correct answer is the respiratory system.
The correct answer is the respiratory system. To arrive at this answer, you can eliminate the other options - the digestive system, cardiac system, and endocrine system - as they are not primarily responsible for supplying oxygen to the blood. Once you have narrowed down the options, the remaining choice is the respiratory system, which consists of organs such as the lungs, trachea, and diaphragm that work together to take in oxygen from the air and transfer it into the bloodstream. The oxygenated blood is then circulated throughout the body, delivering oxygen to all organs and tissues.
