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3 divisions of the chest
- 1) Bony Thorax
- 2) Respiratory System
- 3) Mediastinum
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Bony Thorax Function
provide protective framework
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Bony Thorax is made up of...
- Sternum, Anteriorly
- Clavicles, Superiorly
- 12 pair of Ribs, Circling
- Manubrium, Posteriorly
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2 main landmarks used for Chest Radiography
- 1) Vertebra Prominens (C7 vertebrae)
- 2) Jugular Notch (manubrial/suprasternal notch)
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Vertebral level of.. Vertebra Prominens, Jugular Notch, & Xiphoid Tip
Vertebra Prominens, C7
Jugular Notch, T2-T3
Xiphoid Tip, T9-T10
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Divisions of the Respiratory System Proper (4)
- 1) Larynx
- 2) Trachea
- 3) Rt/Lft Bronchi
- 4) Lungs
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Pharynx: serves as a passageway for _______ & ______. Not part of ______ ______ ______
Air & Food, not part of Respiratory System Proper
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3 Divisions of Pharynx
- 1) Nasopharynx
- 2) Oropharynx
- 3) Larngopharynx
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Larynx: Also known as _______ & extends from _______ to _______.
AKA- voice box, C3 to C4
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Trachea: located _______ to esophagus, divides at level ________ into ________ & ________ bronchi.
- Located, anterior
- Level, T4/T5
- Into, Rt & Lft
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Another name for primary bronchi
Rt & Lft main stem bronchi
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3 characteristics of Rt bronchi
- 1) wider
- 2) shorter
- 3) 25 degree angle of divergence?
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Carina...
The area where the Rt & Lft bronchi split
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Rt main stem bronchi divides into ___ secondary bronchi & Lft main stem bronchi divides into ___ secondary bronchi.
3, 2
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Each secondary bronchus has an associated ______ of each lung.
lobe
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Each secondary bronchi divides into _______.
bronchioles
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Functional unit of respiration
Alveoli
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Rt lung has _____ fissures where as Lft lung has _____ fissures.
2, 1
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Define parenchyma
light spongy substance that makes up the lungs--- highly elastic
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Define pleura
double walled sac around the lungs
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Outer pleura
parietal pleura
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Inner pleura
visceral pleura, covers surface of lungs
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Pleural cavity
potential space b/w the double walled pleura
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Pneumothorax
Air/gas in the pleural cavity--can cause lung to collapse
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Pleural effusion/ Hemothorax
Fluid/ liquid w/in the pleural cavity
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Mediastinum (4 structures)
- 1) thymus gland
- 2) heart & great vessels
- 3) trachea
- 4) esophagus
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Hyperstehenic Habitus
- broad, thick (deep), shallow vertical demension
- (IR placement?)
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Asthetic Habitus
- narrow, shallow, long vertical demension
- (IR placement?)
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On inspiration the diaphragm moves _______ & on expiration the diaphragm moves _________.
downward, upward
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You want a minimum of _____ ribs on a radiograph of the chest.
10
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