| A | B |
|---|
| Alveoli | Air sacs or grape-like clusters found at the end of each bronchiole. |
| Apex | Upper part of the lung |
| Base | Lower part of the lung |
| Bronchi | The trachea divides into these two branches |
| Bronchioles | Smallest branches of the bronchi. |
| Bronchus | Each of these leads to a separate lung |
| Cilia | Thin hairs located just inside the nostril, filtering incoming air to remove debris. |
| Diaphragm | Muscle separating the chest and abdomen, aids in breathing. |
| Epiglottis | Flap of cartilage that covers the larynx |
| Exhalation | Breathing out. |
| Inhalation | Breathing in. |
| Inspiration | Another term for inhalation |
| Larynx | Contains structures that make speech possible. |
| Larynx | Voice box |
| Left Lung | Has two lobes |
| Lungs | There are two of these occupying the chest cavity to remove carbon dioxide from the blood and provide it with oxygen. |
| Mediastinum | Region between the lungs |
| Mucus | Secreted by the mucous membrane helps to moisten, warm and filter the air as it enters the nose. |
| Nares | Pair of openings in the nose |
| Nasal Cavity | Passageway for air to enter the body. |
| Nasal Septum | A wall of cartilage dividing the nose |
| Paranasal sinuses | Four pairs of sinuses located in the bones of the skull communicate with the nasal cavity. |
| Parietal | Outer layer of the pleura |
| Pharynx | Nasopharynx, oropharynx and laryngopharynx are division of this |
| Pharynx | Throat |
| Pleura | Three layered membrane surrounding each lung |
| Pleura | Contains a lubricating fluid to prevent friction when the membranes rub together during respiration. |
| Pleural Cavity | Also called pleural space |
| Pleural Space | The space that is formed when the two layers of the pleura spread apart |
| Right Lung | Has three lobes |
| Sinuses | Air-filled cavity within a bone; they provide mucus. |
| Thoracic Cavity | Area containing the lungs. |
| Tonsils | Lymphatic tissue protecting the body from invading organisms, are found at the back of the throat. |
| Trachea | Extends from the neck into the chest, directly in front of the esophagus: held open by a series of C-shaped cartilage rings. |
| Trachea | Windpipe |
| Visceral | Inner layer of the pleura |
