________ play an important role in regulating the airflow through the air passageways.
A. Alveolar ducts
B. Bronchioles
C. Lobar bronchi
D. Trachea
Answer: B
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Which does NOT accurately describe interferons?
A. They are proteins produced by most cells of the body in response to infection by a virus. B. They interfere with viral replication in cells. C. They play a role in the killing of tumor cells. D. They kill bacteria by forming pores in the cell membrane. E. They bind to surface receptors on cells, and trigger cellular production of antiviral proteins.
Satellite cells are multinucleate
Indicate whether this statement is true or false.
Each segment of lung tissue is divided into a number of ____ wrapped in elastic connective tissue with a lymphatic, an arteriole, a venule, and bronchioles from a terminal bronchiole
a. alveolus b. meatus c. septa d. lobules
Which of the following functions are supplied by branches of the vertebral arteries EXCEPT ___.
a) speech b) vision c) alertness d) balance e) coordination