However, there is a distinction between utility and evolutionary origin.

The paranasal sinuses may act simply to improve nasal function certainly, it has been demonstrated that they may act as an adjunct in the production of nitric oxide and in aiding the immune defences of the nasal cavity. The sinuses purpose is to humidify the air to the lungs, as well as create mucus secretion to eliminate unwanted particles from the body. The current, tenable theories are described. The current, tenable theories identified in the literature review are discussed and the evidence for them critically analysed. There are four pairs of sinuses, named for the bones that they’re located in: The maxillary sinuses are located on.

Any relevant references were cascaded to increase detection of pertinent information. The sinuses are hollow spaces in the skull and the face bones around your nose. 3) To produce mucus to provide lubrication for the tissues of the nasal cavity. 2) To help produce sound by giving resonance to the voice. Functions of these sinuses are: -1) To make the ones of the skull lighters. Combinations of the following search terms were used: 'paranasal sinuses', 'physiology', 'anatomy', 'function', 'evolution' and 'rhinology'. Can be a sac or cavity in any organ of tissue however, most commonly refers to the paranasal sinus. This review aims to define the current evidence for the role of the paranasal sinuses, and to attempt to propose an answer to the question 'why do we have paranasal sinuses? 'Ī literature review was conducted, searching Medline (1966-2007), Embase (1988-2007), the Cochrane Library and Ovid (1966-2007). The paranasal sinuses, comprising the frontal, maxillary, ethmoid and sphenoid sinuses, have caused consternation and debate over their true function over the course of nearly two millennia.

What is the purposes of sinuses