Examlex
A cation has __________ electrons and is ________ charged.
Primary Bronchus
Either of the two main branches of the trachea that lead directly into the lungs, providing a pathway for air flow.
Ciliated
Relating to or having tiny hair-like structures on the surface that move in a wavelike manner to propel substances.
Smooth Muscle
A type of muscle found in the walls of internal organs and blood vessels, functioning involuntarily to regulate bodily processes.
Bronchioles
Small airways in the lungs that branch off from the bronchi, leading to the alveoli where gas exchange occurs.
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