|
 | scapula |
| coracoid process |
| clavicle |
| trachea (TR) |
| aortic arch (AA) |
| left auricle (LAu) |
| left primary bronchus (LPB) |
| right border of the heart (RB). Remember that
the right atrium forms this border. |
| pulmonary vessels (PV) |
| descending aorta (DA) |
| left border of the heart (LB) formed by the left
ventricle (LV) |
| right diaphragm (RD) Usually slightly higher
that the left diaphragm (LD) |
| vertebral spine (VS) |
| 12th rib |
| lower border of the breast in the female (BR)
|
| gas bubble in the stomach (usually gives a clue
to where the stomach is |
|
In a PA view, the anterior chest
is placed forward onto a film holder. The x-ray machine then shoots x-rays
through the body and onto the film. In this way, the anterior thoracic
structures should have the best resolution. Most of you have had a general
PA radiograph taken. Remember that they always have you take in a deep
breath and hold it and also to place you hands on your hips with your
shoulders pressed against the film. What this does is to pull the thorax as
far forward as possible and the air in the lungs will give a better contrast
to muscular structures and viscera because it will be black.
Identify the following structures:
 |
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