Tutorial 6 - Upper Limbs Flashcards
3 Muscles in the Anterior Shoulder Girdle (Thorax)
subclavius
pectoralis minor
serratus anterior
Subclavius
thorax: anterior shoulder girdle
move the scapula and stabilize the shoulder girdle
Pectoralis minor
thorax: anterior shoulder girdle
move the scapula and stabilize the shoulder girdle
Serratus anterior
thorax: anterior shoulder girdle
move the scapula and stabilize the shoulder girdle
Trapezuis
thorax: posterior shoulder girdle
prime movers in elevation of the shoulder
Levator scapulae
thorax: posterior shoulder girdle
prime movers in elevation of the shoulder
Rhomboid major
thorax: posterior shoulder girdle
retract and stabilize scapula
Rhomboid minor
thorax: posterior shoulder girdle
retract and stabilize scapula
4 Muscles in the Posterior Shoulder Girdle (Thorax)
trapezius
levator scapulae
rhomboid major
rhomboid minor
3 Prime Movers on Arms (Thorax)
pectoralis major
latissimus
deltoid
Pectoralis major
thorax: prime movers on arms
cross the shoulder joint and insert on the humerus
Latissimus dorsi
thorax: prime movers on arms
cross the shoulder joint and insert on the humerus
Deltoid
thorax: prime movers on arms
cross the shoulder joint and insert on the humerus
Synergist
assist the agonist muscle or the “prime mover”
Fixator
stabilizes the origin of the agonist and the joint the origin spans
6 Synergists/Fixators Arm Muscles
supraspinatus
infraspinatus
teres minor
teres major
coracobrachialis
subscapularis
Supraspinatus
arms: synergists & fixators
- stabilize and assist in movements of the humerus
ALSO
arms: rotator cuff
- assist in rotation of the arm and prevent dislocation of shoulder joint
Infraspinatus
arms: synergists & fixators
- stabilize and assist in movements of the humerus
ALSO
arms: rotator cuff
- assist in rotation of the arm and prevent dislocation of shoulder joint
Teres minor
arms: synergists & fixators
- stabilize and assist in movements of the humerus
ALSO
arms: rotator cuff
- assist in rotation of the arm and prevent dislocation of shoulder joint
Teres major
arms: synergists & fixators
- stabilize and assist in movements of the humerus
Coracobrachialis
arms: synergists & fixators
- stabilize and assist in movements of the humerus
Subscapularis
arms: synergists & fixators
- stabilize and assist in movements of the humerus
ALSO
arms: rotator cuff
- assist in rotation of the arm and prevent dislocation of shoulder joint
Which 4 synergist/fixator arm muscles are part of the rotator cuff?
supraspinatus
infraspinatus
teres minor
subscapularis
What are the four forearm elbow flexors?
biceps brachii (long head)
biceps brachii (short head)
brachialis
brachioradialis
Biceps brachii (long head)
forearm: elbow flexors
main muscles of elbow flexion
Biceps brachii (short head)
forearm: elbow flexors
main muscles of elbow flexion
Brachialis
forearm: elbow flexors
main muscles of elbow flexion