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SCM |
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Origin: Mastoid Process of temporal bone
Insertion: Sternum and clavicle |
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Scalenes |
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Origin: cervical transverse processes
Insertion: 1st & 2nd ribsLongus Colli |
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Longus Colli |
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Origin: anterior body of cervical spine
Insertion: anterior body of cervical or upper thoracic spine |
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Suboccipitals |
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Origin: several muscles that runs between the occiput, C1, and C2 both on the anterior and posterior side
Insertion: |
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Erector spinae |
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Origin: run from iliac crest, sacrum, spine, and ribs longitudinally to
Insertion: spine, ribs, or occiput |
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Deep layer of spine (Multifidi & Rotators) |
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Origin: Spinous and transverse process
Insertion: one or a few vertebra down to spinous or transverse process |
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Rectus Abdominis |
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Origin: xiphiod process, anterior ribs
Insertion: pubic bone |
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External Oblique Abdominis |
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Origin: Lateral ribs
Insertion: Runs inferiormedially to the rectus sheath |
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Internal Oblique Abdominis |
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Origin: Rectus sheath, lower ribs
Insertion: Runs inferiolaterally to Iliac crest and thoracolumbar fascia |
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Transverse Abdominis |
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Origin: Rectus sheath
Insertion: thoracolumbar fascia, iliac crest lower ribs |
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Quadratus Lumborum |
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Origin: 12th rib, transverse processes of lumbar spine
Insertion: Posterior iliac crest |
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Levator scapulae |
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Origin: upper cervical transverse processes
Insertion: superior angle of scapula |
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Trapezius |
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Origin: occiput, spinous process C2-T12
Insertion: Spine of scapula, acromion, outer 1/3rd of clavicle |
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Rhomboids |
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Origin: spinous process of upper thoracic
Insertion: medial border of scapula (runs inferiolateral to scapula) |
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Serratus Anterior |
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Origin: lateral ribs
Insertion: medial border of scapula - anteriorly |
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Pectoralis Major |
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Origin: medial clavicle, sternum, and anterior ribs
Insertion: Intertubercular groove of humerus (Lateral lip = greater tubercle) |
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Pectoralis Minor |
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Origin: Anterior upper ribs
Insertion: coracoid process |
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Latissimus Dorsi |
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Origin: spinous process T7-T12 and thoracolumbar fascia, iliac crest
Insertion: Intertubercular groove of humerus (medial lip = lesser tubercle) |
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Deltoid |
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Origin: Lateral clavicle, acromion, spine of scapula
Insertion: deltoid tuberosity of humerus |
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Supraspinatus |
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Origin: supraspinous fossa
Insertion: Greater tubercle of humerus |
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Infraspinatus |
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Origin: lateral posterior scapula
Insertion: Greater tubercle of humerus |
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Subscapularis |
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Origin: subscapular fossa
Insertion: Lesser tubercle of humerus |
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Teres minor |
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Origin: lateral posterior scapula
Insertion: Greater tubercle of humerus |
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Teres major |
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Origin: inferior angle of scapula
Insertion: Intertubercular groove of humerus (Medial lip = lesser tubercle) |
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Coracobrachialis |
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Origin: coracoid process
Insertion: medial mid-humerus |
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Biceps brachii |
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Origin: LH - supraglenoid tubercle, SH - coracoid process
Insertion: radial tuberosity |
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Brachialis |
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Origin: anterior humerus
Insertion: ulnar tuberosity and coranoid process |
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Brachioradialis |
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Origin: lateral distal humerus
Insertion: radial styloid |
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Triceps brachii |
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Origin: LH - infraglenoid tubercle, other heads - posterior humerus
Insertion: Olecranon process |
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Aconeus |
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Origin: lateral epicondyle of humerus
Insertion: Olecranon process |
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Pronator teres |
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Origin: medial epicondyle
Insertion: anterior mid-radius |
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Flexor carpii radialis |
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Origin: medial epicondyle
Insertion: 2nd metacarpal - palmar side |
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Palmaris longus |
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Origin: medial epicondyle
Insertion: Palmar fascia |
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Flexor carpii ulnaris |
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Origin: medial epicondyle
Insertion: 5th metacarpal - palmar side |
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Flexor digitorum superfacialis |
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Origin: medial epicondyle
Insertion: middle phalanx of 2 - 5 fingers. |
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Flexor digitorum profundus |
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Origin: anterior forearm
Insertion: distal phalanx of 2 - 5 figners |
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Flexor pollicus longus |
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Origin: anterior forearm
Insertion: distal phalanx of thumb |
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Pronator quadratus |
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Origin: anterior distal ulna
Insertion: anterior distal radius |
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Extensor carpii radialis longus |
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Origin: Lateral epicondyle
Insertion: 2nd metacarpal - posteriorly |
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Extensor carpii radialis brevis |
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Origin: Lateral epicondyle
Insertion: 3rd metacarpal -posteriorly |
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Extensor digitorum |
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Origin: Lateral epicondyle
Insertion: distal phalanx of 2 - 5 fingers (via extensor hood) |
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Extensor digiti minimi |
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Origin: Lateral epicondyle
Insertion: distal phalanx of 5th finger (via extensor hood) |
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Extensor carpii ulnaris |
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Origin: Lateral epicondyle
Insertion: 5th metacarpal - posteriorly |
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Supinator |
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Origin: proximal ulna
Insertion: proximal radius |
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Outcropper muscles |
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Origin: posterior forearm
Insertion: 3 to thumb; 1 to index finger |
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