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The lungs of amphibians typically have a few narrow internal walls of soft tissue around the outer walls, increasing the respiratory surface area and giving the lung a honeycomb appearance. In some salamanders even these are lacking, and the lung has a smooth wall.
The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...
A pulmonary contusion is a bruise of the lung tissue caused by trauma. [33] Damaged capillaries from a contusion can cause blood and other fluids to accumulate in the tissue of the lung, impairing gas exchange. Pulmonary edema is the buildup of fluid in the parenchyma and alveoli. An edema is usually caused by left ventricular heart failure, or ...
t. e. Respiratory epithelium, or airway epithelium, [1] is a type of ciliated columnar epithelium found lining most of the respiratory tract as respiratory mucosa, [2] where it serves to moisten and protect the airways. It is not present in the vocal cords of the larynx, or the oropharynx and laryngopharynx, where instead the epithelium is ...
Pulmonary fibrosis. Pulmonary fibrosis is a condition in which the lungs become scarred over time. [ 1 ] Symptoms include shortness of breath, a dry cough, feeling tired, weight loss, and nail clubbing. [ 1 ] Complications may include pulmonary hypertension, respiratory failure, pneumothorax, and lung cancer.
This disease is chronic and progressive, the damage to the lungs is irreversible and eventually fatal. COPD destroys the alveoli, and lung tissue which makes breathing very difficult, causing shortness of breath, hyperventilation, and raised chest. The decreased number of alveoli causes loss of oxygen supply to the lungs and an increased ...
Pneumonia can lead to the development of a lung abscess, [4] which is a pus-containing necrotic lesion of the lung parenchyma (lung tissue). [5] On CT scan of the chest, a lung abscess appears as an intermediate- or thick-walled cavity with or without an air-fluid level (a flat line separating the air in the cavity from the fluid). [4]
A pulmonary laceration is a chest injury in which lung tissue is torn or cut. [ 1 ] An injury that is potentially more serious than pulmonary contusion, pulmonary laceration involves disruption of the architecture of the lung, [ 2 ] while pulmonary contusion does not. [ 3 ] Pulmonary laceration is commonly caused by penetrating trauma but may ...
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