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RAD 110 Resp System
Respiratory System
| Question | Answer |
|---|---|
| 3 main thoracic structures: | Lungs |
| 3 main thoracic structures: | Heart |
| 3 main thoracic structures: | Diaphragm |
| Thoracic Cavity Boundaries are: Anteriorly | Sternum |
| Thoracic Cavity Boundaries are: Posteriorly | Spine |
| Thoracic Cavity Boundaries are: Laterally | Ribs |
| Thoracic Cavity Boundaries are: Inferiorly | Diaphragm |
| Thoracic Cavity Boundaries are: Superiorly | Superior thoracic aperture |
| Contents of the thoracic cavity | Esophagus, Lungs, Trachea, bronchi, Heart & Great vessels (aorta, superior and inferior vena cava), and Thymus gland |
| Thymus Gland- | A specialized, two-lobed lymphoid organ, essential for developing the immune system. Most active during childhood, reaching its maximum size at puberty, After puberty it slowly shrinks and is replaced by fat in adulthood. |
| Thymus Gland- | Produces and matures lymphocytes that fight infection |
| 3 Thoracic Chambers | Right pleural cavity |
| 3 Thoracic Chambers | Left pleural cavity |
| 3 Thoracic Chambers | Mediastinum |
| Mediastinum- | Separates the right and left pleural cavities |
| Mediastinum contains | Esophagus, Trachea & Bronchi, Heart & Great vessels (aorta, superior and inferior vena cava), Thymus gland |
| Pleural Cavities | Everything encircling the lungs. Both pleural cavities have several layers |
| Pleura | Lungs |
| Visceral Pleura | Serous membrane covering the surface of the lungs |
| Pleural Space | Space between the visceral and parietal pleura • Where a pneumothorax would occur |
| Parietal Pleura | Serous membrane on the outermost surface of the cavity |
| Parts of the Respiratory System | Trachea |
| Parts of the Respiratory System | Larynx |
| Parts of the Respiratory System | Lungs |
| Parts of the Respiratory System | Bronchi |
| Pharynx- | Connects mouth to esophagus |
| Larynx- | Connects pharynx to trachea |
| Trachea- | Fibrous, muscular tube with 16 to 20 C-shaped cartilaginous rings in its walls for strength |
| Trachea position- | Lies in midline, anterior to esophagus • Ends at the carina, the last hook shaped cartilage of the trachea, where the trachea divides, or bifurcates into 2 primary bronchi |
| The right primary bronchus is | shorter, wider, and more vertical |
| It's easier for foreign bodies to enter the ______ bronchus | Right |
| Subdivisions of bronchial tree | • Primary bronchi • Secondary bronchi • Tertiary bronchi |
| Subdivisions of bronchial tree | • Bronchioles • Terminal bronchioles |
| Subdivisions of bronchial tree | • Alveolar ducts • Alveolar sacs • Alveoli |
| Lung Comparison- Right Lung | Shorter, wider, 3 lobes, 2 fissures |
| Lung Comparison- Left Lung | Longer, more narrow, 2 lobes, 1 fissure, has cardiac notch |
| Anatomy of the Lungs: Apex | • Superior portions • Reaches above clavicles • Lordotic view will show apices best |
| Anatomy of the Lungs: Base | • Inferior portion • Rests obliquely on diaphragm • Lower in back and sides than in front |
| Anatomy of the Lungs: Cardiophrenic Angles | Medial Angles (near heart) |
| Anatomy of the Lungs: Costophrenic Angles | Lateral angles (near ribcage) |
| Anatomy of the Lungs: Hilum | Medial entrance for bronchi, blood vessels and lymphatic vessels |
Created by:
user-2016295