By Terry Des Jardins
This leading edge, best-selling ebook presents the main whole and actual information regarding the constitution and serve as of the breathing process. The relevance to respiration care perform in actual fact units this source aside, with scientific eventualities to problem your program of ideas and formulation in addition to quite a few illustrations of universal pathological stipulations corresponding to cystic fibrosis, power bronchitis, and bronchial asthma.
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Additional info for Cardiopulmonary Anatomy & Physiology: Essentials for Respiratory Care, 5th Edition
Sample text
The larynx is commonly described as a vestibule opening into the trachea from the pharynx. The larynx serves three functions: (1) it acts as a passageway of air between the pharynx and the trachea, (2) it serves as a protective mechanism against the aspiration of solids and liquids, and (3) it generates sounds for speech. Cartilages of the Larynx The larynx consists of a framework of nine cartilages (Figure 1–11). Three are single cartilages: thyroid cartilage, cricoid cartilage, and the epiglottis.
When the bronchi decrease to less than 1 mm in diameter and are no longer surrounded by connective tissue sheaths, they are called bronchioles. The bronchioles are found between the tenth and fifteenth generations. At this level, cartilage is absent and the lamina propria is directly connected with the lung parenchyma (see lung parenchyma in the section on sites of gas exchange in this chapter). The bronchioles are surrounded by spiral muscle fibers and the epithelial cells are more cuboidal in shape (see Figure 1–16).
When this occurs, the patient’s stomach is ventilated. A misplaced endotracheal tube in the esophagus can be fatal (Figure 1–10). The Larynx The larynx, or voice box, is located between the base of the tongue and the upper end of the trachea (see Figure 1–1). The larynx is commonly described as a vestibule opening into the trachea from the pharynx. The larynx serves three functions: (1) it acts as a passageway of air between the pharynx and the trachea, (2) it serves as a protective mechanism against the aspiration of solids and liquids, and (3) it generates sounds for speech.