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Chapter 1

An Overview of the Respiratory System: Anatomy, Physiology, Assessment, and Abnormalities

The upper respiratory system contains the nose, oral cavity, nasal cavity, paranasal sinuses, and the pharynx. The nose and nasal cavity form the external …
The lower respiratory tract comprises the larynx, trachea, bronchial tree, alveoli, lungs, and pleurae. The larynx, positioned between the pharynx and the …
The physiology of respiration involves three fundamental processes: ventilation, oxygenation, and the dynamics of compliance and resistance. Ventilation …
The regulation of respiration is mediated by a cluster of neurons in the brainstem known as the respiratory centers. The respiratory centers are divided …
A respiratory tract assessment helps identify and manage respiratory conditions by collecting both subjective and objective data. Subjective data is …
Inspection is the initial step in assessing the respiratory system. It involves observing the following components. Initially, the chest configuration is …
Palpation is a method of assessing the respiratory tract to detect tenderness, masses, lesions, respiratory excursions, and fremitus. First, the nurse …
Begin the percussion assessment by positioning the patient upright and leaning forward with arms folded for the posterior chest examination. Start …
Auscultation is a crucial method in respiratory assessment that provides vital information about airflow and lung obstructions. Begin by instructing the …
Inspection and percussion methods of examination help detect respiratory system abnormalities. Abnormalities detected during the inspection include the …
In respiratory assessments, palpation can detect abnormalities such as tracheal deviation, suggesting conditions like tension pneumothorax or large …
Exercise is a stress to the pulmonary vasculature. With incremental exercise, the pulmonary diffusing capacity (DLCO) must increase to meet the increased …
Regular physical activity has a positive effect on human health, but the mechanisms controlling these effects remain unclear. The physiologic and biologic …
Respiratory oscillometry is a different modality of pulmonary function testing that is increasingly used in a clinical and research setting to provide …