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Trapezius
Action:
-Superior:
-Middle:
-Inferior:
Action:
-Superior: Elevate and superiorly rotate scapula
-Middle: Retract scapula
-Inferior: Depress scapula
Levator Scapulae
Action:
Action: Elevate Scapula
Inferiority rotate scapula
Rhomboid Major
Action:
Action: Elevates Scapula
Retracts Scapula
Inferior rotates scapula
Rhomboid Minor
Action:
Action: Elevates Scapula
Retracts Scapula
Inferior rotates scapula
Pectoralis Minor
Action:
Action: Protract Scapula
Depress Scapula
Seratus Anterior
Action:
Action: Protracts Scapula
Superiorly Rotates Scapula
Stabilizes Scapula
Subclavius
Action:
Action: Stabilizes and depresses clavicle
Latisimus Dorsi
Action:
Action: Extends GH
Adducts GH
Medially Rotates GH joint
Pectoralis Major
Action:
Action: GH flexion
Adduct GH
Medially rotates GH joint
Deltoid
Action:
Anterior Fibers:
Middle Fibers:
Posterior Fibers:
Action:
Anterior Fibers: Flex and medially rotate GH joint
Middle Fibers: GH Abduction
Posterior Fibers: Extend and laterally rotate GH Joint
Coracobrachialis
Origin:
Origin: Coracoid Process
Teres Major
Origin:
Origin: Inferior lateral border
Inferior angle of scapula
Triceps Brachi (long head)
Origin:
Origin: Infraglenoid Tubercle
Biceps Brachii (Long Head)
Origin:
Origin: Supraglenoid Tubercle
Subscapularis
Origin:
Subscapularis
Origin: Subscapular Fossa
Action: Medially Rotate GH Joint
Insertion: Lesser tubercle of humerus
Innervation: Upper Subscapularis Nerve
Lower Subscapularis Nerve
Supraspinatis
Origin:
Action:
Insertion:
Innervation:
Supraspinatis
Origin: Supraspinous fossa
Action: Abduct GH Joint
Insertion: Greater Tubercle of Humerus
Innervation: Suprascpular Nerve
Infraspinatous
Origin:
Action:
Insertion:
Innervation:
Infraspinatous
Origin: Infraspinous fossa
Action: Adducts GH
Laterally rotates GH Joint
Insertion: greater tubercle of humerus
Innervation: Suprascapular nerve
Teres Minor
Origin:
Action:
Insertion:
Innervation:
Teres Minor
Origin: Superior lateral border of the scapula
Action: Adducts GH
Laterally rotates GH Joint
Insertion: greater tubercle of humerus
Innervation: Axillary nerve
Biceps Brachii (Both Heads)
Origin:
Action:
Insertion:
Innervation:
Biceps Brachii (Both Heads)
Origin: Long Head: Supraglenoid tubercle of scapula
Short Head: Coracoid process of scapula
Action: Flex Elbow
STRONG SUPINATOR
Long head: Flex GH
Insertion: Radial Tuberosity
Bicipital Aponeurosis
Innervation: Musculocutanous
Brachialis
Action:
Innervation:
Brachialis
Action: Primary flexor of elbow
Innervation: musculocutaneous
Brachioradalis
Action:
Insertion:
Innervation:
Brachioradalis
Action: Flexes elbow
Insertion: Styloid process of radius
Innervation: Radial Nerve
Triceps Brachii (All 3 heads)
Origin:
Action:
Insertion:
Innervation:
Triceps Brachii (All 3 heads)
Origin: Long Head: Infraglenoid tubercle of scapula
Action: Primary extensor of elbow
Long head of triceps: Extend GH Joint
Insertion: olecranon process of ulna
Innervation: radial nerve
Pronator Teres
Origin:
Action:
Innervation:
Pronator Teres
Origin: Medial epicondyle of humerus
Action: Pronate Forearm
Innervation: Median Nerve
Flexor Carpi Radialis
Origin:
Action:
Innervation:
Flexor Carpi Radialis
Origin: Medial epicondyle of humerus
Action: Flexes Wrist
Abduct Hand
Innervation: Median Nerve
Palmaris Longus
Origin:
Action:
Innervation:
Palmaris Longus
Origin: Medial epicondyle of humerus
Action: Weak Wrist Flexor
Innervation: Median Nerve
Flexor Carpi ulnaris
Origin:
Action:
Innervation:
Flexor Carpi ulnaris
Origin: Medial epicondyle of humerus
Action: Flex Wrist
Adduct Hand
Innervation: Ulnar Nerve
flexor digitorum superficialis
Origin:
Action:
Insertion:
Innervation:
flexor digitorum superficialis
Origin: medial epicondyle of humerus
Action: Flex Wrist
Flex 2nd-5th
Flex MP
Flex PIP
Insertion: Middle Phalanges of finger 2-5
Innervation: Median Nerve
Flexor pollicis longus
Origin:
Action:
Insertion:
Innervation:
Flexor pollicis longus:
Action: Flex MP of thumb
Flex IP of thumb
Insertion: Distal Phalanx of thumb
Innervation: median nerve
Flexor digitorum profundus
Action:
Insertion:
Innervation:
Flexor digitorum profundus
Action: Flex Wrist
Flex 2-5 MP Joint
Flex PIP Joint
Flex DIP Joint
Insertion: Distal Phalanges of 2-5
Innervation: Lateral 1/2 = Median Nerve
medial 1/2 = Ulnar Nerve
Pronator Quadratus
Action:
Innervation:
Pronator Quadratus
Action: Pronates Forearm
Innervation: Median Nerve
Extensor Carpi Radialis longus
Action:
Innervation:
Extensor Carpi Radialis longus
Action: Extensor Wrist
Abducts Hand
Innervation: Radial Nerve
Extensor Carpi Radialis Brevis
Origin:
Action:
Innervation:
Extensor Carpi Radialis Brevis
Origin: Lateral epicondyle of humerus
Action: Extends Wrist
Abducts Hands
Innervation: Radial Nerve
Extensor digitorum
Origin:
Action:
Innervation:
Extensor digitorum
Origin: Lateral epicondyle of humerus
Action: Extends Wrist
Extends 2-5 MP
Extends PIP Joints
Extends DIP Joints
Innervation: Radial Nerve
Extensor digiti minimi
Origin:
Action:
Innervation:
Extensor digiti minimi
Origin: Lateral epicondyle of humerus
Action: Extends Wrist
Extends MP
Extends PIP of finger 5
Innervation: radial nerve
extensor carpi ulnaris
Origin:
Action:
Innervation:
extensor carpi ulnaris
Origin: Lateral epicondyle of humerus
Action: Extends Wrist
Adducts Hand
Innervation: Radial Nerve
Abductor pollicis longus
Action:
Innervation:
Abductor pollicis longus
Action: Abduct thumb
Innervation: Radial Nerve
extensor pollicis brevis
Action:
Innervation:
extensor pollicis brevis
Action: Extends MP of thumb
Innervation: Radial Nerve
Extensor pollicis longus
Action:
Innervation:
Extensor pollicis longus
Action: Extends MP of thumb
Extends IP of thumb
Innervation: Radial Nerve
Extensor indicus
Action:
Innervation:
Extensor indicus
Action: Extends MP of finger 2
Extends PIP of finger 2
Extends DIP of finger 2
Innervation: Radial Nerve
Supinator
Action:
Innervation:
Supinator
Action: Supinates Forearm
Innervation: Radial Nerve
Flexor pollicis brevis
Action:
Innervation:
Flexor pollicis brevis
Action: Flex thumb
Innervation: Median Nerve
Abductor pollicis brevis
Action:
Innervation:
Abductor pollicis brevis
Action: Abducts thumb
Innervation: Median Nerve
Opponens Pollicis
Action:
Innervation:
Opponens Pollicis
Action: Opposes Thumb
Innervation: Median Nerve
flexor digiti minimi brevis
Action:
Innervation:
flexor digiti minimi brevis
Action: Flex Finger 5
Innervation: Ulnar Nerve
Abductor digiti minimi
Action:
Innervation:
Abductor digiti minimi
Action: Abduct finger 5
Innervation: Ulnar Nerve
Opponens digiti minimi
Action:
Innervation:
Opponens digiti minimi
Action: Opposition of finger 5
Innervation: Ulnar Nerve
Lumbricals
Action:
Innervation:
Lumbricals
Action: Flex 2-5 MP Joints
Extends 2-5 PIP and DIP
Innervation: Lateral Lumbrical-Median Nerve
Medial Lumbrical- Ulnar Nerve
Dorsal interossi
Action:
Innervation:
Dorsal interossi
Action: Abducts finger 2-5
Innervation: Ulnar Nerve
Plantar interossi
Action:
Innervation:
Plantar interossi
Action: Adducts finger 2-5
Innervation: Ulnar Nerve
Adductor pollicis
Action:
Innervation:
Adductor pollicis
Action: Adducts thumb
Innervation: Ulnar Nerve
Trapezius
Innervation:
Innervation: CN 11