The primary function of the _________________ is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body.
(1 point)
Responses
digestive system
digestive system
cardiac system
cardiac system
respiratory system
respiratory system
endocrine system
3 answers
respiratory system
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.
19 answers