Each kidney is made up of about 1 million filtering units called __________.
Your brain can control your breathing rate depending on the amount of __________ present in your blood.
What happens to most of the water, sugar, and salts filtered from the blood in the kidneys?
|A)||They are reabsorbed and returned to the blood.|
|B)||They leave through the digestive system.|
|C)||They are converted into urine.|
|D)||They are exhaled from the lungs.|
Besides the kidney, what other organ also filters blood to remove wastes?
Which one of the following is a disease of the respiratory system in which alveoli in the lungs enlarge?
The __________ system is made up of several different systems that function together to remove wastes from your body
Which one of the following problems can occur if someone's kidneys don't work properly?
|A)||less oxygen enters the capillaries|
|B)||an imbalance of salts|
|C)||few if any problems would occur|
|D)||an increase of carbon dioxide in the blood|
What area of the brain constantly monitors the amount of water in the blood?
Inhaling the tar in __________ is the greatest contributing factor to lung cancer.
The liquid left behind in the nephron following filtration is called __________.
The urinary system is important in regulating __________ in the body.
Which of the following is a method used to save the life of a choking victim?
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|
The __________ is a tubelike passageway used by food, liquid, and air.
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?
What is the function of cilia that line the nasal cavity?
|A)||produce sticky mucus|
|B)||moisten the air taken in|
|C)||trap dust from the air|
|D)||sweep away mucus and trapped materials|
Which one of the following is a lung disorder that occurs when the bronchial tubes contract quickly?
During dialysis an artificial kidney machine is used to __________.
|A)||increase lung pressure|
|C)||remove wastes from blood|
|D)||pump blood through the heart|
Which one of the following is the correct pathway of air after it enters the nasal passages?
|A)||lungs, bronchi, trachea, larynx, pharynx|
|B)||larynx, pharynx, bronchi, trachea, lungs|
|C)||pharynx, larynx, trachea, bronchi, lungs|
|D)||larynx, trachea, pharynx, bronchi, lungs|
The exchange of oxygen and carbon dioxide in the lungs takes place between the __________.
|A)||pharynx and lungs|
|B)||bronchi and bronchiles|
|C)||nostrils and lungs|
|D)||alveoli and capillaries|