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thoracic

QuestionAnswer
What separates the pleural cavities? : The mediastinum.
What structures are in the thoracic cavity? : Lungs, heart, respiratory organs, cardiovascular/lymphatic structures, inferior esophagus, thymus.
: What structure separates the thoracic and abdominal cavities? Diaphragm.
What are the four major components of the respiratory system? Pharynx, trachea, bronchi, lungs.
How many cartilaginous rings does the trachea have? A: 16–20 C-shaped rings.
What is the carina? A: Hook-like process at the last tracheal cartilage where the trachea bifurcates.
Which primary bronchus is more vertical, wider, and shorter? A: The right primary bronchus.
List the divisions of the bronchial tree from largest to smallest. Primary bronchi → Secondary → Tertiary → Bronchioles → Terminal bronchioles → Alveolar ducts.
How is gas exchanged in the alveoli? A: By diffusion.
What do alveolar ducts end in? A: Alveolar sacs.
: Why is the right lung shorter? A: Because the liver elevates it.
How many lobes does each lung have? A: Right = 3; Left = 2.
What are the two layers of pleura? A: Visceral (inner) and parietal (outer).
What are the three subdivisions of the pharynx? A: Nasopharynx, oropharynx, laryngeal pharynx.
What protects the airway during swallowing? A: Epiglottis.
Name at least five structures located in the mediastinum. A: Heart, great vessels, trachea, esophagus, thymus, lymphatics, nerves, fat, fibrous tissue.
Where is the CR directed for the AP soft tissue neck? A: Laryngeal prominence or manubrium.
SID used for AP soft tissue neck 40''
Why is 72" SID used for chest imaging? A: To reduce heart magnification and increase detail.
CR location for PA chest? A: T7.
How many ribs must be visible above the diaphragm? A: 10 posterior ribs.
where should the clavicles be in PA chest under the apices
why do we do left lateral chest to minimize heart magnification
In PA obliques, where is the side of interest? side of interest is farther from the IR bc it elongates that side
RAO projection facing the IR, right side closer side of interest= left bc of spine
LAO projection Facing the IR, left side closer side of interest= right bc of spine
RPO posterior to board, right side closer to IR - side of interest= right
LPO posterior to IR, left side closer to IR -side of interest= left
to demonstrate fluid, the pt should lie on the affected side and wait for 5 min to take image
To demonstrate free air, patient should be positioned on unaffected side and wait 5 min b4 image
right later decubitus pt lying on right side, IR back or front
Created by: user-1989152
 

 



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