part1
Terms
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- structure that warms, moistens, and filters air as it enters the respiratory tract and that houses the olfactory receptors for the sense of smell
- nose
- air filled spaces in the skull that open into the nasal cavity
- sinuses
- partition between the oral and nasal cavities divided into the hard and soft
- palate
- throat, passageway for food to the esophagus and air to the larynx
- pharynx
- part of the pharynx directly behind the nasal passages
- nasopharynx
- central portion of the pharynx between the roof of the mouth and the upper edge of the epiglottis
- orophaynx
- lower part of the pharynx just below the oropharynx opening into the larynx and the esophagus
- laryngopharynx
- oval lymphatic tissues on each side of the pharynx that filter air to protect the body from bacterial invasion also called palatine
- tonsils
- lymphatic tissue on the back of the pharynx behind the nose also called pharyngeal tonsil
- adenoid
- small projection hanging from the back middle edge of the soft palate, named for its grape like shape
- uvula
- voice box, passageway for air moving from pharynx to trachea, contains vocal cords
- larynx
- opening between the vocal cords in the larynx
- glottis
- lid-like structure that covers the larynx during swallowing to prevent food from entering the airway
- epiglottis
- windpipe, passageway for air from the larynx to the area of the carina where it splits into the right and left bronchus
- trachea
- branched airways that lead from the trachea to the alveoli
- bronchial tree
- two primary airways branching from the area of the carina into the lungs
- right and left bronchus
- progressively smaller tubular branches of the airway
- bronchioles
- thin walled microscopic air sacs that exchange gases
- alveoli
- two spongy organs, located in the thoracic cavity enclosed by the diaphragm and rib cage, responsible for respiration
- lungs
- subdivisions of the lungs, two on the left and three on the right
- lobes
- membranes enclosing the lung and lining the thoracic cavity
- pleura
- potential space between the visceral and parietal layers of the pleura
- pleural cavity
- muscular partition that separates the thoracic cavity from the abdominal cavity and aids in respiration by moving up and down
- diaphragm
- partition that separates the thorax into two compartments and encloses the heart, esophagus, trachea, and thymus gland
- mediastinum
- thin sheets of tissue that line the respiratory passages and secrete mucus a viscid (sticky) fluid
- mucous membranes
- hair like processes from the surface of epithelial cells, such as those of the bronchi, that provide upward movement of mucus cell secretions
- cilia
- functional tissues of any organ such as the tissues of the bronchioles, alveoli, ducts, and sacs that perform respiration
- parenchyma