X-Ray Certification Anatomy Recognition 2 — Questions and Answers
Question 1: On a PA chest radiograph, which structure forms the right heart border?
- Right ventricle
- Right atrium (Correct answer)
- Superior vena cava only
- Left atrium
Correct answer: Right atrium
The right heart border on a PA chest X-ray is formed by the right atrium.
Question 2: Which bone forms the lateral wall of the orbit on a facial X-ray?
- Frontal bone
- Zygomatic bone (Correct answer)
- Maxilla
- Lacrimal bone
Correct answer: Zygomatic bone
The zygomatic bone forms the lateral wall of the orbit, visible on facial radiographs.
Question 3: On a lateral knee radiograph, which structure appears as a teardrop-shaped density posterior to the distal femur?
- Patella
- Fabella (Correct answer)
- Fibular head
- Tibial plateau
Correct answer: Fabella
The fabella is a sesamoid bone in the lateral gastrocnemius tendon, visible as a small density posterior to the femoral condyle.
Question 4: Which vertebral level does the diaphragm attach at, as commonly referenced on chest imaging?
- T8
- T10
- T12 (Correct answer)
- L1
Correct answer: T12
The diaphragm's muscular portions attach at approximately T12 and the aortic hiatus is at T12.
Question 5: On an AP pelvis radiograph, the teardrop figure is formed by which structures?
- Ischium and pubis
- Medial acetabular wall and pelvic floor (Correct answer)
- Femoral head and acetabulum
- Ilium and sacrum
Correct answer: Medial acetabular wall and pelvic floor
The radiographic teardrop is formed by the medial acetabular wall and the lateral pelvic floor, used to assess joint space and protrusio.
Question 6: Which structure is identified as the aortic knob on a PA chest radiograph?
- Ascending aorta
- Aortic arch (Correct answer)
- Descending aorta
- Aortic root
Correct answer: Aortic arch
The aortic knob represents the aortic arch as it passes over the left main bronchus, visible on the left superior mediastinum.
Question 7: On a lateral skull radiograph, the sella turcica is located within which bone?
- Temporal bone
- Ethmoid bone
- Sphenoid bone (Correct answer)
- Occipital bone
Correct answer: Sphenoid bone
The sella turcica is a saddle-shaped depression in the sphenoid bone that houses the pituitary gland.
X-Ray Certification Anatomy Recognition 2
On a PA chest radiograph, which structure forms the right heart border?