In invertebrates, trachea refers to the open respiratory system composed of spiracles, tracheae, and tracheoles. Insects and other arthropods use the trachea to transport oxygen, water and carbon dioxide to and from tissues.
Like humans, insects are aerobic organisms, requiring oxygen to be delivered to their cells to function.
At the end of each tracheal branch is a cell called a tracheole that functions to provide the interface for the exchange of oxygen and carbon dioxide.
Tags: Morphology & Physiology
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