Bony Landmarks & Anatomy
Position Perfection
CR & Centering Masters
Anatomy and more...
Mystery category
100

The most distal bone of the thumb.

What is the distal phalanx of the thumb?

100

In this position, the proximal radius crosses over the ulna.

What is the PA projection of the forearm?

100

The CR location for an AP forearm.

What is mid-forearm?

100

The medial distal humeral prominence that articulates with the trochlear notch of the ulna.

What is the trochlea?

100

Small carpal bone that serves as a sesamoid bone.

What is the pisiform? 

200

The largest carpal bone.

What is the capitate? 

200

To best visualize the coronoid process, the patient’s hand should be positioned in this way.

What is pronated?

200

For a PA finger, the CR is centered here.

What is the proximal interphalangeal (PIP) joint?

200

The depression on the anterior distal humerus that receives the radial head during elbow flexion.

What is the radial fossa?

200

This carpal bone is most commonly fractured.

What is the scaphoid?

300

This depression on the posterior humerus receives the olecranon process when the elbow is extended.

What is the olecranon fossa?

300

With the hand flat, the thumb will be in this position.

What is oblique?

300

The CR angle and direction used for the Coyle method to visualize the coronoid process.

What is 45° away from the shoulder?

300

The articulation between the radius and the ulna at the proximal forearm that allows rotation of the forearm.

What is the proximal radioulnar joint?

300

The bony prominence on the distal ulna that articulates with the triquetrum.

What is the ulnar styloid process?

400

This lateral bony prominence of the distal humerus articulates with the radius and is a landmark for proper elbow positioning.

What is the capitulum?

400

The lateral wrist is performed with the thumb positioned this way relative to the IR.

What is depressed and abducted from the hand?

400

For a PA axial (Stecher) wrist projection, the CR is angled this degree and direction to elongate the scaphoid.

What is 20° toward the elbow?

400

The kVp range for a digital system, for the 2nd finger. 

What is 50-60?

400

The triangular radiolucent area on a lateral elbow that, when visible, indicates an occult fracture or joint effusion.

What are fat pads (sail sign).

500

The carpal bones in the proximal row from lateral to medial

What are the scaphoid, lunate, triquetrum, pisiform? 

500

This projection of the elbow results in the least superimposition of the olecranon process.

What is lateral? 

500

This CR angle and direction is required for the AP axial Modified Robert's projection.

What is 15 degrees proximal?

500

The pronator fat stripe is located here.

What is anterior to the distal radius? 

500

For a trauma axial lateral projection (Coyle method), the elbow should be flexed this much.

What is 80 degrees? 

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