1.
What is the function of cilia that line the nasal cavity?A) moisten the air taken in B) produce sticky mucus C) trap dust from the air D) sweep away mucus and trapped materials 2.
Which one of the following is a disease of the respiratory system in which alveoli in the lungs enlarge?A) chronic bronchitis B) lung cancer C) emphysema D) asthma 3.
What happens to most of the water, sugar, and salts filtered from the blood in the kidneys?A) They are converted into urine. B) They leave through the digestive system. C) They are exhaled from the lungs. D) They are reabsorbed and returned to the blood. 4.
Which one of the following problems can occur if someone's kidneys don't work properly?A) less oxygen enters the capillaries B) few if any problems would occur C) an increase of carbon dioxide in the blood D) an imbalance of salts 5.
Which of the following is a method used to save the life of a choking victim?A) emphysema B) abdominal thrusts C) respiration D) bronchitis 6.
Besides the kidney, what other organ also filters blood to remove wastes?A) liver B) heart C) bladder D) lungs 7.
The __________ is a tubelike passageway used by food, liquid, and air.A) nostril B) epiglottis C) pharynx D) larynx 8.
What is the name of the elastic, muscular organ that holds urine until it leaves the body?A) ureter B) urethra C) bladder D) kidney 9.
Inhaling the tar in __________ is the greatest contributing factor to lung cancer.A) cigarette smoke B) polluted air C) coal dust D) asbestos 10.
When you swallow, the epiglottis prevents __________.A) food or liquid from entering your airway B) air from entering your lungs C) carbon dioxide from entering your lungs D) dust and bacteria from entering your airway 11.
What muscle contracts and relaxes when you inhale and exhale?A) larynx B) lung C) diaphragm D) trachea 12.
Which one of the following is a lung disorder that occurs when the bronchial tubes contract quickly?A) asthma B) emphysema C) chronic bronchitis D) common cold 13.
The __________ system is made up of several different systems that function together to remove wastes from your bodyA) urinary B) circulatory C) excretory D) respiratory 14.
During dialysis an artificial kidney machine is used to __________.A) remove wastes from blood B) pump blood through the heart C) produce bile D) increase lung pressure 15.
The urinary system is important in regulating __________ in the body.A) fluid levels B) oxygen C) undigested material D) waste gases 16.
Some early experiments showed that a mouse could live in a container in which a plant had first been grown. What did the plant produce that the mouse needed?A) oxygen B) water vapor C) food D) carbon dioxide 17.
Your brain can control your breathing rate depending on the amount of __________ present in your blood.A) sugar B) water C) carbon dioxide D) oxygen 18.
The main organs of the urinary system are two __________.A) lungs B) alveoli C) kidneys D) nephrons 19.
The exchange of oxygen and carbon dioxide in the lungs takes place between the __________.A) nostrils and lungs B) bronchi and bronchiles C) alveoli and capillaries D) pharynx and lungs 20.
Which one of the following is the correct pathway of air after it enters the nasal passages?A) larynx, trachea, pharynx, bronchi, lungs B) pharynx, larynx, trachea, bronchi, lungs C) larynx, pharynx, bronchi, trachea, lungs D) lungs, bronchi, trachea, larynx, pharynx