Muscles of the Upper Limb - Posterior Shoulder and Rotator Cuff Flashcards
Name nerve A
A - Dorsal scapular nerve
What is the function of muscle A?
- Abductor of arm (beyond initial 15º achieved by supraspinatus)
- Flexion of arm (clavicular fibres)
- Extension of arm (posterior fibres)
A - Deltoid
What is the function of muscle A?
Lateral rotation of arm (at glenohumeral joint)
A - Teres minor
N.b the teres minor is a rotator cuff muscle
Name muscle A
A - Infraspinatus
Name muscle A
A - Trapezius
Name muscle A
A - Teres major
Name muscle A
A - Levator scapulae
What is the function of muscle A?
- Medial rotation of arm (at glenohumeral joint)
- Extension of arm (at glenohumeral joint)
A - Teres major
What is the innervation of muscle A?
Axillary nerve (C5 and C6)
A - Deltoid
What is the function of muscle A?
- Extension of forearm (at elbow joint)
- Adduction of arm (at glenohumeral joint)
- Extension of arm (at glenohumeral joint)
A - Long head of triceps brachii
What is the innervation of muscles A and B?
Dorsal scapular nerve (C5 and C6)
A - Rhomboid minor
B - Rhomboid major
What are the spaces A, B and C?
A - Triangular space
B - Quadrangular space
C - Trianglular interval
Name nerve A
A - Accessory nerve (XI)
What is the innervation of muscle A?
Accessory nerve (XI) - Motor
Anterior rami of C3 and C4 - Sensory
A - Trapezius
Name nerve A
A - Axillary nerve