Week 7: Thorax workshop Flashcards
See page 75, name structures 1-12
- Descending thoracic aorta
- Internal thoracic artery
- Anterior intercostal artery
- External intercostal membrane
- Lateral cutaneous branch
- External intercostal muscle
- Posterior intercostal artery
- Intercostal nerve
- Internal intercostal membrane
- Parietal pleura
- Endothoracic fascia
- Internal intercostal muscle
Which dome extends higher? R or L?
Right extends higher (liver pushes it up)
What is the upper surface and under surface of the diaphragm lined by?
Upper surface: fused with fibrous pericardium
Under surface: lined by peritoneum
What are the openings of the diaphragm and what structures pass through here? (and at what level)
T8: Inferior vena cava, branches of R phrenic N
T10: Oesophagus, ant/post vagal trunks
T12: Aortic hiatus: Aorta, azygous vein, hemiazygous and thoracic duct
Where is the parietal layer continuous with the visceral pleura?
As a sleeve around the lung root structures
What is the pulmonary ligament?
A double fold of pleura inferior to the lung root structures
What is the nerve supply to parietal and visceral pleura?
Shared with the structures they line
What are the features of pain referred from the visceral and parietal pleura?
Visceral: dull, poorly localised
Parietal: severe, well localised
Which bronchus divides before it reaches the hilum?
R main bronchus
What are the location of structures at the hilum of the left lung?
Pulmonary artery: superior
Pulmonary veins: Anterior/inferiorly
Left bronchus: on left
What are the location of the structures at the hilum of the R lung?
Pulmonary artery: anterior
Bronchi: on R
Pulmonary veins: anteriorly and inferiorly
Where do the coronary arteries run?
In the AV (coronary) sulcus
What are the ridged surfaces in the R atrium and ventricule called?
Atrium: musculi pectina
Ventricular: trabeculae carnae
What are the arteries of the heart?
Left coronary artery splits int circumflex branch and anterior interventricular branch (becoming the posterior interventricular branch)
Right coronary artery gives off a marginal branch
What direction do the upper ribs alter the diameter in respiration?
Lower ribs?
Upper: AP
Lower: transverse
Where does the trachea bifurcate?
Manubriosternal junction
Where are the apex of the lungs?
2.5cm above the medial 3rd of the clavicles
Draw the borders of the lungs
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Draw the borders of the heart
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