Muscles of Pectoral Girdle and Upper Limbs

Card Set Information

Author:
Piperidine
ID:
40395
Filename:
Muscles of Pectoral Girdle and Upper Limbs
Updated:
2010-10-07 00:20:19
Tags:
Arm muscle
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Description:
muscles that move the arm
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  1. Muscles that move the arm
    • Coracobrachialis
    • Deltoid
    • Supraspinatus
    • Infraspinatus
    • Subscapularis
    • Teres Major
    • Teres minor
    • Triceps brachii (long head)
    • Latissimus dorsi
    • Pectoralis major
  2. Origin & Insertion
    Coracobrachialis
    • Origin: coracoid process
    • Insertion: medial margin of shaft of humerus

  3. Origin & Insertion
    Deltoid
    • Origin: clavicle and scapula
    • Insertion: deltoid tuberosity of humerus

  4. Origin & Insertion
    Supraspinatus
    • Origin: Supraspinous fossa of scapula
    • Insertion: greater tubercle of humerus

  5. Origin & Insertion
    Infraspinatus
    • Origin: infraspinous fossa of scapula
    • Insertion: greater tubercle of humerus

  6. Origin & Insertion
    Subscapularis
    • Origin: subscapular fossa of scapula
    • Insertion: lesser tubercles of humerus

  7. Origin & Insertion
    Teres major
    • Origin: inferior angle of scapula
    • Insertion: medial lip of intertubercular sulcus
  8. Origin & Insertion
    Teres minor
    • Origin: lateral border of scapula
    • Insertion" greater tubercle of humerus

  9. Origin & Insertion
    Triceps brachii (long head)
    • Origin: infraglenoid tubercle
    • Insertion: olecranon of ulna
  10. Origin & Insertion
    Biceps brachii
    • Origin: short head from coracoid process; long head from supraglenoid tubercle (both on scapula)
    • Insertion: radial tuberosity

  11. Origin & Insertion
    Latissimus dorsi
    • Origin: spinous processes of inferior thoracic and all lumbar vertebrae. ribs 8-12, thoracolumbar fascia
    • Insertion: floor of intertubercular sulcus of the humerus

  12. Origin & Insertion
    Pectoralis major
    • Cartilages of ribs 2-6, body of sternum and inferior, medial portion of clavicle
    • Insertion: crest of greater tubercle and lateral lip of intertubercular sulcus of humerus

    • Coracobrachialis
    • Action: adduction and flexion at shoulder

    Innervation- nerve c5-c7
    • Deltoid
    • Action:
    • Whole muscle: abduction of shoulder
    • Anterior: flexion and medial rotation of humerus
    • Posterior: extension and lateral rotation of humerus

    Innervates axillary nerve (c5-c6)
    • Supraspinatus
    • Action: abduction at shoulder

    Innervation: suprascapular nerve C5
  13. Infraspinatus

    Action: lateral rotation at shoulder

    Innervation: suprascapular nerve (c5
  14. Subscapularis:

    Action: medial rotation at shoulder

    Innervation: subscapular nerve (c5
    • Teres Major
    • Action: extension and medial rotation at shoulder

    Innervation: lower subscapular nerve (c5-c6)
    • Teres minor
    • ACtion- lateral rotation and adduction at shoulder

    Innervation: axillary nerve C5
    • Triceps brachii
    • Action: extension at elbow
    • Biceps brachii
    • Action: flexion at elbow
    • Latissimus dorsi
    • Action: extension, adduction, and medial rotation at shoulder

    Innervation: thoracodorsal nerve
    • Pectoralis major
    • Action: flexion, adduction, and medial rotation at shoulder

    Innervation: pectoral nerves

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