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Chapter 12: RS

Respiratory System Vocabulary Terms

Adenoids: Lymphatic tissue in the nasopharynx
Alveolus: Air sac in the lung
Apex of the lung: Tip of uppermost portion of the lung
Base of the lung: Lower portion of the lung
Bronchioles: Smallest branches of the bronchi
Carbon Dioxide: Gas produced by body cells when oxygen and food combine; exhaled through the lungs
Cilia: Thin hairs attached to the mucous membrane epithelium lining the respiratory tract
Diaphram: Muscle spearating the chest and abdomen
Epiglottis: Lid-like piece of cartilage that covers the larync, preventing food from entering the larynx and trachea during swallowing
Glottis: Slit-like opening to the larynx
Hilum: midline region where the bronchi, blood vessels, and nerves enter and exit the lungs
Inspiration: Breathing in
Larynx: Voice box
Lobe: Division of a lung
Mediastinum: Region between the lungs in the chest cavity
Nares: Openings through the nose carrying air into the nasal cavities
Oxygen: Gas that passes into the bloodstream at the lungs and travels to all body cells
Palatine Tonsil: One of a pair of almond-shape masses of lymphatic tissue in the oropharynx
Paranasal Sinus: One of the air cavities in the bones near the nose
Parietal Pleura: Outer fold of pleura lying closer to the ribs and chest wall
Pharynx: Throat; including the nasopharynx, oropharynx, and laryngopharynx
Pleura: Double-folded membrane surroudning each lung
Pleural Cavity: Space between the folds of the pleura
Pulmonary Parenchyma: Essential parts of the lung, responsible for respirtation; bronchioles and alveoli
Respiration: Process of moving air into and out of the lungs; breathing
Trachea: Windpipe
Visceral Pleura: Inner fold of pleura lying closer to the lung tissue
Created by: oxdaniellexo