AP Humerus Flashcards
What anatomic structure is located on the anterior surface of the proximal Humerus?
Lesser tubercle
What anatomic structure is located on the lateral surface of the proximal Humerus?
Greater tubercle
What anatomic structure of the Humerus articulates with the glenoid cavity of the scapula?
Humeral head
Which neck of the Humerus is located just distal to the humeral head?
Anatomical neck
Which neck of the Humerus is located just distal to the lesser tubercle?
Surgical neck
What “groove” is located between the lesser and greater tubercle?
Intertubercular groove
What is the best way to position your patient if they are in pain?
Upright
How should the arm be positioned to obtain a true AP projection of the Humerus?
Affected arm externally rotate humerus
How should the humeral epicondyles be positioned in relation to the IR?
Parallel
How much of the IR should be visible above the humeral head?
1.5” above shoulder
What is the CR location?
Midshaft, mid humerus
How much of the IR should extend beyond each joint? Why?
1” of light on either side, 2” from each joint,
In a properly positioned AP projection, where should the greater tubercle be demonstrated?
In profile laterally
In a properly positioned AP projection, where should the humeral head be demonstrated?
I’m profile medially
In a properly positioned AP projection, where should the lesser tubercle be demonstrated?
Hanging out in between on anterior surface
