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Chap. 18
Thorax, chest and abdomen
Question | Answer |
---|---|
the upper portion of the trunk | thorax |
the distal tip of the sternum | xiphoid process |
the sections of the lungs | lobes |
the inferior lateral corners of the lungs | costophrenic angles |
the space between the lungs | mediastinum |
What SID is used for a chest x-ray? | 72 in. |
the top, or superior aspect of the lungs | apex |
the structure that separates the thoracic cavity from the abdominal cavity | diaphragm |
What does ALARA stand for | As Low As Reasonably Achievable |
what does AEC stand for | Automatic Exposure Control |
how many vertebra are in the thoracic spine | 12 |
how many vertebra are located in the cervical spine | 7 |
what structures serve as cushions in the anterior portion of the vertebral column | intervertebral discs |
What is demonstrated on the upright abdomen? | air-fluid levels |
where you center for the AP projection of the abdomen in the supine position | midsagittal plane at level of iliac crest |
what type of cell is most radio sensitive | embryonic |
where is the odontoid process located | the superior surface of the body of the axis |
how many vertebra are in the lumbar spine | 5 |
what is a phototimer | a type of AEC device that terminates exposure after a specific quantity of light is detected |
what is the purpose of "warm up" exposures | to prevent damage to the anode from sudden heating |