Chp 10-Muscles Acting On The Scapula Flashcards
4 Muscles Acting On The Scapula
- Rhomboid (major & minor)
- Levator scapulae
- Pectoralis minor
- Trapezius
Rhomboid (major & minor) - I =
I: scapula
Rhomboid (major & minor) - A =
A: retracts & elevates scapula, tilts glenoid fossa inferiorly
Levator scapulae - O =
O: transverse processes C1-C4
Levator scapulae - I =
I: scapula
Levator scapulae - A =
A: retracts & elevates scapula
Pectoralis minor - O =
O: Ribs 3-5, anteriorly
Pectoralis minor - I =
I: coracoid process of scapula
Pectoralis minor - A =
A: protracts & depresses scapula
Trapezius - O =
O: occipital (Upper), Cervical spinous processes (Middle) & Thoracic spinous processes (Lower)
Trapezius - I =
I: scapular spine & acromion process
Trapezius - A =
A: elevates (Upper), retracts (Middle), depresses (Lower)
Rhomboid and Levator do retraction or protraction?
retraction
Pectoralis minor and Trapezius do retraction or protraction?
protraction
Rhomboid (major & minor) - O =
O: C7- T5 spinous processes