Scapula (scapulothoracic joint)

Question 1

Elevation (antagonists on depression)

Answer 1

• Trapezius (upper fibers, unilaterally)
• Rhomboid major
• Rhomboid minor
• Levator scapula (unilaterally)

Question 2

Depression (antagonists on elevation)

Answer 2

• Trapezius (lower fibers)
• Serratus anterior (with the origin fixed)
• Pectoralis minor

Question 3

Adduction (retraction) (antagonists on abduction)

Answer 3

• Trapezius (middle fibers)
• Rhomboid major
• Rhomboid minor

Question 4

Abduction (protraction) (antagonists on adduction)

Answer 4

• Serratus anterior (with the origin fixed)
• Pectoralis minor

Question 5

Upward rotation of the Scapula (antagonists on downward rotation)

Answer 5

• Trapezius (upper and lower fibers)
• Serratus anterior (with the origin fixed)

Question 6

Downward rotation of the Scapula (antagonists on upward rotation)

Answer 6

• Rhomboid major
• Rhomboid minor
• Levator scapula
• Pectoralis minor