| A | B |
| inflammation of a sinus | Sinusitis |
| Inflammation of the alveoli of the lung – may be caused by bacteria or viruses | Pneumonia |
| Sensitivity to foreign proteins causing watery discharge from eyes and nose | Hay Fever |
| nose bleed | Epistaxis |
| Mechanism for clearing obstructions from airway | Cough |
| Most widespread of all communicable diseases, characterized by swollen and inflamed mucous membranes of the nose and throat with copious discharge | Common cold |
| Painful or Labored breathing | Dyspnea |
| Lack of oxygen | Anoxia |
| Cessation of breathing | Apnea |
| Allergic reaction in which the walls of the small bronchioles swell with a thick mucus secretion | Asthma |
| The process of changing foodstuffs into usable substances | Digestion |
| the transfer of nutrients into the blood stream | Absorption |
| the process of taking food into the digestive tract | Ingestion |
| a chronic disease in which normal liver cells are replaced by scar tissue | Cirrhosis |
| inflammation of the liver | Hepatitis |
| Dilation of veins, usually in legs | Varicose veins |
| Blood clot | Thrombus |
| Inflammation of a vein | Phlebitis |
| Abnormal heart sound | Murmur |
| Insufficient blood supply to a given part of the body | Ischemia |
| Copious bleeding | Hemorrhage |
| High blood pressure | Hypertension |
| Blood clot or foreign material carried by the blood stream into a small blood vessel causing obstruction | Embolus |
| Closing a coronary artery by a blood clot | Coronary thrombosis |
| Closing off of a coronary artery | Coronary occlusion |