PLANTS

PLANTS Outline the pathway of air from the nostrils to the alveoli in the fetal pig. The penurious passages are separated from each other bt the nasal septum. The switch off turbinate bones in the sinus area good the surface area of the passageways, creating eddy currents that , along with hairs, cilia and mucus, help break off dust in the inhaled air and humidify it. Air enters the nasopharynx from the behind end of the nasal passages, then passes into the pharynx, through the glottis, and into the larynx and lastly the trachea.

Air then pas ses through the voice box and everywhere the vocal cords which vibrate when air passes over them. The city block is a sheet of muscle that seperates the abdonimal cavity from the pectoral cavity. The thoracic cavity is divided into three areas by membranes: The right and go away pleural cavities, which surround the lungs, and the pericardial cavity where the stub is located. The trachea, when it enters the thorax,...If you deficiency to get a full essay, order it on our website: OrderCustomPaper.com

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