Question

In the AP projection of the knee, the ____

1) Femoral condyles are superimposed
2) CR is directed 1.5 cm distal to the patellar apex
3) Patella is visualized through the femur

a. 1 only
b. 1 and 2 only
c. 2 and 3 only
d. 1, 2 and 3

Answer 1

In the AP projection of the knee, the femoral condyles, CR, and patella are visualized.

Step-by-step explanation:

In the AP projection of the knee, the Femoral condyles are superimposed, the CR is directed 1.5 cm distal to the patellar apex, and the Patella is visualized through the femur. Therefore, the correct answer is d. 1, 2 and 3. In the AP projection of the knee, the correct statements are: Femoral condyles are superimposed. CR is directed 1.5 cm distal to the patellar apex. The patella is visualized through the femur. So, the answer to the question is option d, which is '1, 2, and 3'. The femoral condyles should be superimposed to accurately demonstrate the knee joint space and structures in an AP projection. The central ray (CR) alignment 1.5 cm distal to the patellar apex helps ensure that the beam is directed through the knee joint properly. The patella should be visible through the distal femur on a properly positioned AP knee projection.