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Respiratory System (Respiratory Disorders (Emphesyma (Alveoli enlarge as…
Respiratory System
Respiratory Disorders
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Asthma
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Response to irritants with dyspnea, coughing, and wheezing.
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Upper Respiratory Tract
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Paranasal Sinuses
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Frontal, sphenoid, ethmoid, maxillary bone.
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Breathing Mechanism
Respiration
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Cellular respiration occurs in the mitochondrion of the cell; oxygen carried as oxyhemoglobin in blood.
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Inspiration
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Forced inhalation: Scalenes muscles, sternocleidomastoid and pectoralis.
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Lower Respiratory Tract
Trachea
Fairly rigid because of the C shaped rings made of hyaline cartilage to keep airway open at all times.
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Primary Bronchi
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Right bronchus is wider, shorter, and straighter than left, due to the presence of the heart on the left side.
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Lung Volume
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Breathing Patterns
Eupnea: Normal, quiet breathing.
Apnea: Temporary, lessation of breathing.
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Control of Respiration
Respiratory center: Several groups of neurons in medulla oblongata and pons- control rate and depth of breathing.
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