Working in a dusty environment for a long period of time without a proper mask will cause a decrease in lung elasticity due to tissue scaring.  This situation results in a condition called ________.

Which respiratory structure is used to produce the sounds we use for verbal communication?

All of the accessory organs of the digestive system send their secretions into the small intestine.

What molecule diffuses from the air contained within the alveoli into the pulmonary blood supply?

Which part of the respiratory system is responsible for gas exchange with the pulmonary capillaries?

Nephrons can selectively remove or “cherry pick” particularly dangerous molecules and ions out of the blood for disposal in the urine.  This process is called _______.

Which solute from the list below do you think is the most likely to be secreted into the proximal convoluted tubule?

During inhalation, the diaphragm contracts and flattens, while the rib cage moves up.

The soupy, acidic liquid of partially digested food that leaves the stomach is called _______.

Study this diagram of the respiratory system carefully.  Use it and the pull-down menus below to answer the following questions: