Morphological study of bronchial tree and lung in Iraqi weasel (Herpestes javanicus)
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Abstract<p>The current study aimed to identify the morphological description and branches of the bronchial tree and lung for the weasel <italic>Herpestes javanicus</italic> as one of the Iraqi mammals inhabiting the Iraqi environment. In the current study, 10 samples with an mean weight of 288-564 g were used, trachea and lung were removed from the samples and confirmed using proven solutions and laboratory tests were conducted on 5 samples of the study to identify the branches of the bronchial tree using the technique of casting resin and then exposing the samples to erosion. Weasel has a pair of bright pink sponge lungs that occupy most of the thoracic cavity. The lungs look similar to the clover leaf have a top and three surfaces represented by the costal surface that is convex, and the middle surface, characterized by a narrow and diaphragm surface and is identical to the diaphragm. The right lung is larger than the left lung and the right lung consists of four lobes: apical, middle, caudal and an accessory lobe, while the left lung consists of three lobes: apical, middle, caudal lobes the top of the right lung appeared small and semi-sharp, while the left lung is round and blind. The right primary trachea branched into two branches, the upper branch enters into the apical lobe and branches in turn into two secondary branches, while the lower branched into three branches, the first of which enters into the middle lobe and the second to the middle lobe, the third branch into two branches enter the accessory lobes, while the primary left trachea branch into three secondary or lobe branches before entering the left lung branch, where the first branch enters into apical lobe when the second enters the middle lobe while the third section enters the caudal lobe.</p>
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