I believe the answer to your question will be atrioventricular but don't cross out pulmonary it could possibly be the answer.
        
                    
             
        
        
        
1. asthma
2. lung cancer
3. COPD (Chronic Obstructive Pulmonary Disease)
4. pneumonia
5. autism
        
                    
             
        
        
        
I think the answer is: most likely high in saturated fat
 
        
             
        
        
        
The nervous system in one's body sends signals to the muscles to contract in order to move or perform a task like walking. The respiratory system sends oxygen to the muscles in order to provide energy for those actions
        
                    
             
        
        
        
(B) 2, 1, 19 ... is the answer