MT 1 Appendicular Muscles Flashcards
Some Tips for Muscle:
- MUscles with anterior fibres are typically ______
- Muscles with posterior fibres are typically _______
- Muscles with fibres above the glenohumeral joint (shoulder) are typically for _______
- Muscles with fibres below the glenohumeral joint are typically for ________
- Muscles that cross anteriorly (back to front) help ______ rotate
- Muscles that cross posteriorly (front to back) help ____
Some Tips for Muscle:
- Muscles with anterior fibres are typically flexors
- Muscles with posterior fibres are typically extensors
- Muscles with fibres above the glenohumeral joint (shoulder) are typically for abduction
- Muscles with fibres below the glenohumeral joint are typically for adduction
- Muscles that cross anteriorly (back to front) help medially rotate
- Muscles that cross posteriorly (front to back) help laterally rotate
The Trapezius muscle ______, ______, and ______ the scapula based on fibre orientation

The Trapezius muscle elevates, retracts and depresses the scapula based on fibre orientation

The levator scapulae helps in what movement?

Elevation of the scapula

The major and minor rhomboids assist in what motion?

Retraction of the scapula

What movement does the serratus anterior assist in?

Protraction of the scapula
(curve shoulders toward the sternum)

What is the movement of the Pectoralis Minor?
Depresses and protracts the scapula; elevates the ribs (breathing)
Which three muscles act on the pectoral girdle to raise the arm?
Trapezius Upper
Trapezius Lower
Serratus Anterior
Which three muscles acting on the pectoral girdle help bring the arm down?
Levator scapulae
Rhomboids
Pectoralis Minor
What movement do the Pectoralis Major, Subscapularis and Deltoidus have in common?
Medial rotator
The Pectoralis major and deltoideus are both arm ______ and ______ and ______

The Pectoralis major and deltoideus are both arm arm flexors and medial rotators

The Pectoralis major has which three movements
Arm adductor
Flexor
Medial rotator
The Deltoideus has which three movements?
Major arm abductor
arm flexor
medial rotator

The deltoideus has what movements?

Major arm abductor
Arm extensor
Lateral Rotator
4 movements of the Latissmus Dorsi

Powerful arm retractor *major climbing muscle*
arm extensor
adductor
medial rotator
The Teres major assists the latissimus dorsi in which movements?
Arm extension
Medial rotation

The Supraspinatus assists the deltoid in arm ______ (first __ degrees)
The Supraspinatus assists the deltoid in arm abduction (first 15 degrees)
The infraspinatus is a _____ _____ _____
The infraspinatus is a lateral arm rotator

The infraspinatus muscle and teres minor are both ____ _____ _____
The infraspinatus muscle and teres minor are both lateral arm rotators

What are the four rotator cuff muscles?
SITS
- supraspinatus
- infraspinatus
- Teres minor
- subscapularis