Flashcards
Muscles of the upper limb
Cards in this deck (45)
- 14 muscles of the rotator cuff1. Supraspinatus
2. Infraspinatus
3. Teres minor
4. Subscapularis - 2Supraspinatus - originSupraspinous fossa of scapula
- 3Supraspinatus - insertionGreater tuberosity of humerus
- 4Spuraspinatus - innervationSuprascapular nerve
- 5Supraspinatus - functionFirst 15 degrees of abduction of the shoulder
- 6Infraspinatus - originInfraspinous fossa of scapula
- 7Infraspinatus - insertionGreater tuberosity of humerus
- 8Infraspinatus - innervationSuprascapular nerve
- 9Infraspinatus - functionExternal rotation of the shoulder
- 10Teres minor - originLateral border of scapula
- 11Teres minor - insertionGreater tuberosity of humerus
- 12Teres minor - innervationAxillary nerve
- 13Teres minor - function1. Weakly adducts the humeral head to prevent it from sliding superiorly during abduction
2. External rotation of the shoulder - 14Teres major - origins1. Inferior angle of scapula
2. Inferior lateral border of scapula - 15Teres major - insertionCrest of lesser tuberosity of humerus
- 16Teres major - innervationLower subscapular nerve
- 17Teres major - functions1. Adduction
2. Extension
3. Internal rotation
...of the shoulder - 18Subscapularis - originSubscapular fossa of scapula
- 19Subscapularis - insertionLesser tuberosity of humerus
- 20Subscapularis - innervationSubscapular nerves
- 21Subscapularis - functionInternal rotation of the shoulder
- 22Deltoid - origins1. Acromion
2. Lateral 1/3 of clavicle
3. Spine of scapula - 23Deltoid - insertionsDeltoid tuberosity
- 24Deltoid - innervationAxillary nerve
- 25Deltoid - functions1. Abduction (15-90 degrees)
2. Internal rotation and flexion
(anterior deltoid)
3. External rotation and extension (posterior deltoid)
...of the shoulder - 26Coracobrachialis - originCoracoid process
- 27Coracobrachialis - insertionMedial surface of middle of body of humerus
- 28Coracobrachialis - innervationMusculocutaneous nerve
- 29Coracobrachialis - function1. Adduction of the shoulder
2. Flexion of the shoulder - 30Biceps brachii - origin1. Coracoid process (short head)
2. Supraglenoid tubercle (long head) - 31Biceps brachii - insertionRadial tuberosity
- 32Biceps brachii - innervationMusculocutaneous nerve
- 33Biceps brachii - function1. Flexion of the shoulder and elbow
2. Supination of the elbow - 34Brachialis - originAnterior surface of the distal half of humerus
- 35Brachialis - insertionUlna tuberosity
- 36Brachialis - innervation1. Musculocutaneous nerve
2. Radial nerve (double innervation in 70-80% of people) - 37Brachialis - functionFlexion of the elbow
- 38Triceps brachii - origin1. Infraglenoid tubercle of scapula
(long head)
2. Proximal / dorsal surface of humerus (medial and lateral heads) - 39Triceps brachii - insertionOlecranon of ulna
- 40Triceps brachii - innervationRadial nerve
- 41Triceps brachii - function1. Extension of the elbow
2. Adduction of the shoulder - 42Anconeus - originLateral epicodyle of humerus
- 43Anconeus - insertionOlecranon of ulna
- 44Anconeus - innervationRadial nerve
- 45Anconeus - function1. Extension of elbow (trivial)
2. Stabilises the elbow joint
Information
- Description
- Advanced anatomy of the muscles of the upper limb
- Created by
- Hugh Roberts
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