Question | Answer |
Adenoids: | Lymphatic tissue in the nasopharynx; pharyngeal tonsils. |
Alveolus ( plural; alveoli ) | Air sac in the lung. |
Apex of the lung: | Tip or outermost portion of the lung .An apex is the tip of a structure. Apical means pertaining to or located at the apex. The apex of the heart is at the bottom of the heart. |
Base of the lung: | lower portion of the lung; from the Greek ; basis, foundation. Basilar means located at or in the base. |
Bronchiolitis: | Smallest branches of the bronchi. |
Bronchus (plural;bronchi) | Branch of the trachea (windpipe) that is a passageway into the lung; bronchial tube. |
Carbon dioxide: | Gas produced by the body cells when oxygen and carbon atoms from food combine; exhaled through the lungs. |
Cilia: | Thin hairs attached to the mucous membrane epithelium lining the respiratory tract. They clear bacterial and foreign substances from the lung. Cigarette smoke impairs the function of the cilia. |
Diaphragm: | Muscle separating the chest and abdomen. It contracts to pull air into the lungs and relaxes to push air out. |
Epiglottis: | Lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing. |
Expiration: | Breathing out (exhalation). |
Glottis: | Slit-like opening to the larynx. |
Hilum of the lung: | midline region where the bronchi, blood vessels, and nerves enter and exit the lungs. Hilar means pertaining to (at) the hilum. |
Inspiration: | Breathing in (inhalation). |
Larynx: | Voice Box; containing the vocal cords. |
Lobe: | Division of a lung. |
Mediastinum: | Region between the lungs in the chest cavity. It contains the trachea, heart, lymph nodes, aorta, esophagus, in bronchial tubes. |
Nares: | Opening through the nose carrying air into the nasal cavity. |
Oxygen (02): | Gas that may 21% of the air. It hasn't into the bloodstream at the lungs and travels all body cells. |
Palatine tonsil: | One of a pair of almond shaped masses of lymphatic tissue into the oropharynx (Palatine means pertaining to the roof of the mouth). |
Paranasal sinus: | One of the air cavities in bones near the nose. |
Peritoneal pleura | Outer layer of pleura lying closest to ribs and chest wall. |
Pharynx: | Throat; including the nasopharynx, oropharynx and laryngopharynx |
Pleura: | Double layered membrane surrounding each lung. |
Pleural cavity: | Space between the folds of the pleura. |
Pulmonary parenchyma: | Essential parts of the lung, responsible for respiration; bronchiolitis and alveoli. |
Respiration: | Process of moving air into and out of the lungs; breathing. |
Trachea | Windpipe. |
Visceral pleura: | Inner layer of the pleura lying closer to the lung tissues. |