| A | B |
|---|
| Alveoli | Air sacs or grape-like clusters found at the ends of each bronchiole |
| Apex | Upper part of the lung |
| Base | Lower part of the lung |
| Bronchi | Trachea divides into these two branches |
| Bronchioles | Smallest branches of the bronchi |
| Bronchus | Each of these leads to a separate lung |
| Cilia | Thin hairs inside the nose; filters air to remove debris |
| Diaphragm | Muscle separating the chest and the abdomen; aids in breathing |
| Epiglottis | Flap of cartilage that covers the larynx |
| Ethmoid | Paranasal sinuses are the maxillary, frontal, and sphenoid |
| Exhalation | Breathing out |
| Frontal | Paranasal sinuses are the maxillary, ethmoid, sphenoid and |
| Inhalation | Breathing in |
| Inspiration | Another term for inhalation |
| Larynx | contains the vocal folds allowing vocalization |
| Glottis | opening in the larynx behind the vocal folds |
| Lungs | Two of these occupy the chest cavity; remove carbon dioxide from the blood and provide oxygen |
| Intercostal | muscles between the ribs |
| Mucus | Secreted by the mucous membrane to moisten, warm and filter air as it enters the nose |
| Nares | Pair of openings in the nose |
| Nasal Cavity | Passageway for air to enter the body |
| Nasal Septum | Wall of cartilage dividing the nose |
| Paranasal Sinuses | Four pair of sinuses located in the bone of the skull; communicate with the nasal cavity |
| Parietal | Outer layer of the pleura |
| Pharynx | openings used for air exchange and swallowing |
| Pleura | linings of the lungs and chest |
| Pneumonia | results from inflammation in the lungs |
| Respiration | exchange og gases between an animal and its environment |
| Stethoscope | instrument used to evaluate breathing |
| Sinuses | Air-filled cavity within a bone; provide mucus |
| Thoracic Cavity | Area containing the lungs |
| Tonsils | Lymphatic tissue protecting the body from invading organisms; found at the back of the throat |
| Trachea | firm windpipe palpable in the neck |
| white | blood cells that fight infection |
| Visceral | Inner layer of the pleura |
