Scapula Anatomy Quiz

The three edges of the scapula: vertebral, superior, and lateral (axillary).

The three corners of the scapula: superior, inferior, and lateral.

A fossa on the lateral angle of the scapula that holds the humerus head.

A prominent ridge on the posterior scapula, separating fossae.

The area below the scapular spine.

The area above the scapular spine.

Distal extension of the scapular spine.

Projection from the lateral angle, anterior.

A radiographic view of the scapula taken with the arm abducted to prevent overlapping.

To identify and visualize the anatomical structures of the scapula, such as the acromion, neck, and glenoid cavity.

A radiographic view of the scapula taken in a PA oblique position, where the arm is positioned to separate the scapula from the rib cage.

The coracoid process, the body, and the acromion of the scapula form the three legs of the 'Y' shape.

A radiographic view that focuses on the head and neck of the humerus, as well as its relationship with the glenoid cavity of the scapula.

The relationships and structures can be difficult to discern due to the angle of the projection.

A prominent ridge on the posterior surface of the scapula, dividing the supraspinous and infraspinous fossae.

Positioning techniques for taking X-rays of the shoulder joint to visualize different aspects of the humerus head.

An X-ray view of the shoulder where the arm is rotated outward so the epicondyles are parallel to the image receptor.

An X-ray view of the shoulder where the arm is rotated inward so the epicondyles are perpendicular to the image receptor.

An X-ray view of the shoulder where the arm is in a mid-position between external and internal rotation, with the epicondyles at a 45° angle.

A bony prominence on the lateral aspect of the humerus head, most prominent in external rotation.

A bony prominence on the anterior aspect of the humerus head, most prominent in internal rotation.

Bony prominences on the distal humerus, used to determine the rotational position of the arm in X-ray views.

An imaginary line connecting the epicondyles of the distal humerus, used to align the arm in radiographic views.

The greater tubercle is located laterally in profile and the lesser tubercle is anteriorly and medial to the greater tubercle.

They are perpendicular to the image receptor, indicating a lateral position of the humerus.

An X-ray technique used to image the humerus, specifically for detecting fractures or other bone pathologies.

The reasons for performing an AP projection of the humerus.

A break in the humerus bone, a common reason for an AP projection.

When the humerus joint comes out of place, requiring AP projection.

A condition making the bones weak and prone to fractures, a common reason for humerus AP projection.

The shortest distance between the X-ray source and the image receptor, essential for proper exposure and image quality.

The size of the X-ray detector used to capture the image, must be large enough for the entire humerus.

The three joints connecting the scapula and clavicle to the sternum: sternoclavicular, acromioclavicular, and glenohumeral (shoulder).

Joints with a fibrous capsule filled with synovial fluid which lubricates movement.

Freely movable joints, allowing for a wide range of motion.

The ball-and-socket joint between the humerus and scapula, offering great mobility but limited stability.

The gliding joint between the sternum and clavicle, allowing limited movement in various directions.

The gliding joint between the acromion and clavicle, primarily allowing for gliding and secondary rotational movements.

A joint where a rounded head fits into a socket, permitting movement in all planes.

A joint where flat surfaces slide over each other, allowing limited movement.

When the humerus head pops out of the glenoid cavity.

The ability of the shoulder joint to resist displacement due to ligaments, tendons, and muscles.