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