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Muscles of the Upper Extremity and Back
N/A
135
Anatomy
Undergraduate 1
02/20/2013

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Term
Origin of Trapezius
Definition
Skull, cervical, and thoracic vertebrae
Term
Insertion of Trapezius
Definition
Acromion, clavicle, spine of scapula
Term
Action of Trapezius
Definition
Elevation, depression, and adduction of scapula
Term
Innervation of Trapezius
Definition
Cranial Nerve XI, Accessory Nerve
Term
Origin of Latissimus Dorsi
Definition
Thoracic and lumbar vertebrae, sacrum, iliac crest
Term
Insertion of Latissimuss Dorsi
Definition
Intertubucular sulcus of humerus
Term
Action of Latissimus dorsi
Definition
Adduction, extension, and medial rotation of arm
Term
Innervation of Latissimus dorsi
Definition
Thoracodorsal nerve
Term
origin of Levator Scapulae
Definition
Cervical Vertebrae C1 to C4
Term
Insertion of Levator Scapulae
Definition
Medial border of Scapula, above spine
Term
Action of Levator Scapulae
Definition
Elevation/Abduction of scapula
Term
Innervation of Levator Scapulae
Definition
Cranial Nerves 3 and 4
Term
Origin of Rhomboid Minor
Definition
Vertebrae C7 and T1
Term
Insertion of Rhomboid Minor
Definition
Medial border of scapula, at spine
Term
Action of Rhomboid Minor
Definition
Adduction of scapula
Term
Origin of Rhomboid Major
Definition
Vertebrae T2 to T5
Term
insertion of Rhomboid Major
Definition
medial border of scapula, below spine
Term
Action fo Rhomboid Major
Definition
adduction of scapula
Term
Innervation of rhomboid Major
Definition
Dorsal Scapular
Term
Innervation of Rhomboid Minor
Definition
Dorsal Scapular
Term
Origin of Pectoralis Major
Definition
Clavicle, sterum, Costal Cartiliges 1 to 6
Term
Insertion of Pectoralis Major
Definition
Crest of great tubercle of the humerus
Term
Action of Pectoralis Major
Definition
Adduct, medially rotate, and flex arm
Term
Innervation of Pectoralis Major
Definition
Medial and Lateral Pectoral
Term
Origin of Pectoralis Minor
Definition
Ribs 2 to 5
Term
Insertion of Pectoralis Minor
Definition
Coracoid Process
Term
action of Pectoralis Minor
Definition
Lower scapula
Term
Innervation of Pectoralis Minor
Definition
Medial pectoral
Term
Origin of Serratus Anterior
Definition
Ribs 1 to 8
Term
Insertion of Serratus Anterior
Definition
Medial border of scapula
Term
Action of Serratus Anterior
Definition
Raise scapula
Term
Innervation of Serratus Anterior
Definition
Long Thoracic
Term
Origin of Deltoid
Definition
Acromion, clavicle, spine of scapula
Term
Action of deltoid
Definition
Lateral, medial rotations, abduction, flexion and extension of arm
Term
innervation of deltoid
Definition
Axillary nerve
Term
Origin of supraspinatus
Definition
Suprascapular fossa
Term
Insertion of supraspinatus
Definition
Greater tubercle of humerus
Term
Action of supraspinatus
Definition
Abduct arm
Term
Innervation of supraspinatus
Definition
Suprascapular
Term
Origin of infraspinatus
Definition
Infraspinous fossa
Term
Insertion of infraspinatus
Definition
Greater tubercle of humerus
Term
Action of infraspinatus
Definition
Lateral rotation of arm
Term
Innervation of infraspinatus
Definition
suprascapular nerve
Term
Origin of teres minor
Definition
Lateral border of infraspinous fossa
Term
Insertion of teres minor
Definition
Lesser tubercle of humerus
Term
Action of teres minor
Definition
Lateral rotation of arm
Term
Origin of subscapularis
Definition
Subscapular fossa
Term
Insertion of subscapularis
Definition
Lesser tubercle of the humerus
Term
Action of subscapularis
Definition
Medial rotation of arm
Term
Innervation of subscapularis
Definition
Upper and lower subscapular nerve
Term
Origin of teres major
Definition
Inferior angle of infraspinuous fossa
Term
Insertion of teres major
Definition
Crest of the lesser tubercle of humerus
Term
Action of teres major
Definition
Adduction and medial rotation of arm
Term
Innervation of teres major
Definition
Lower subscapular
Term
Origin of Triceps Brachii, long head
Definition
Infraglenoid tubercle
Term
Origin of Triceps Brachii, lateral head
Definition
Humerus above radial nerve
Term
Origin of triceps Brachii, medial head
Definition
Humerus below radial nerve
Term
Insertion of Triceps Brachii
Definition
Olecranon Process
Term
Action of Triceps Brachii
Definition
Extend forearm
Term
Innervation of Triceps Brachii
Definition
Radial nerve
Term
Origin of Biceps Brachii, long head
Definition
Supraglenoid tubercle
Term
Origin of Biceps Brachii, short head
Definition
Coracoid process
Term
Insertion of Biceps Brachii
Definition
Radial tuberosity
Term
Action of Biceps brachii
Definition
Flex and supinate forearm
Term
Innervation of Biceps Brachii
Definition
Musculocutaneous nerve
Term
Origin of Coracobrachialis
Definition
Coracoid process
Term
Insertion of Coracobrachialis
Definition
Middle medial of humerus
Term
Action of Coracobrachialis
Definition
Flex arm
Term
Innervation of Coracobrachialis
Definition
Musculocutaneous nerve
Term
Origin of Brachialis
Definition
Lower humerus
Term
Insertion of Brachialis
Definition
Coranoid process of ulna
Term
Action of Brachialis
Definition
Flex forearm
Term
Innervtion of Brachialis
Definition
Musculocutaneous
Term
Action of pronator teres
Definition
Pronate forearm
Term
Innervation of Pronator Teres
Definition
Median nerve
Term
Action of Flexor Carpi Radialis
Definition
Flex and abduct wrist
Term
Innervation of Flexor Carpi Radialis
Definition
Median nerve
Term
Action of Palmaris Longus
Definition
Flex wrist
Term
Innervation of Palmaris Longus
Definition
Median nerve
Term
Action of Flexor Carpi Ulnaris
Definition
Flex and adduct wrist
Term
Innervation of Flexor Carpi Ulnaris
Definition
Ulnar nerve
Term
Action of Flexor Digitorum Superficialis
Definition
Flex digits
Term
Innervation of Flexor Digitorum Superficialis
Definition
Median nerve
Term
Action of Flexor Digitorum Profundus
Definition
Flex digits
Term
Innervation of Flexor Digitorum Superficialis
Definition
Median nerve
Term
Action of Flexor Pollicis Longus
Definition
Flex thumb
Term
Innervation of Flexor Pollicis Longus
Definition
Median nerve
Term
Action of Pronator Quadratus
Definition
Pronate wrist
Term
Innervation of Pronator Quadratus
Definition
Median nerve
Term
Action of Brachioradialis
Definition
Flex forearm
Term
Innervation of Brachioradialis
Definition
Radial nerve
Term
Action of Extensor Carpi Radialis Longus
Definition
Extend and abduct wrist
Term
Innervation of Extensor Carpi Radialis Longus
Definition
Radial nerve
Term
Action of Extensor Carpi Radialis Brevis
Definition
Extend and abduct wrist
Term
Innervation of Extensor Carpi Radialis Brevis
Definition
Radial nerve
Term
Action of extensor digitorum
Definition
Extends digits
Term
Innervation of Extensor Digitorum
Definition
Radial nerve
Term
Action of Extensor digiti minimi
Definition
Extends small digits (fifth finger)
Term
Innervation of Extensor Digiti Minimi
Definition
Radial nerve
Term
Action of Extensor carpi ulnaris
Definition
Extends and adducts wrist
Term
Innervation of Extensor Carpi Ulnaris
Definition
Radial nerve
Term
Action of Anconeus (fourth head of triceps brachii)
Definition
Extend forearm
Term
Innervation of Anconeus
Definition
Radial nerve
Term
Action of supinator
Definition
Supinates forearm
Term
Innervation of Supinator
Definition
Radial nerve
Term
Action of Abductor pollicis longus
Definition
Abduct thumb
Term
Innervation of Abductor pollicis longus
Definition
Radial nerve
Term
Action of Extensor pollicis brevis
Definition
Extends thumb
Term
Innervation of Extensor Pollicis Brevis
Definition
Radial nerve
Term
Action of Extensor Pollicis Longus
Definition
Extends thumb
Term
Innervation of Extensor Pollicis Longus
Definition
Radial nerve
Term
Action of Extensor indicis
Definition
Extend index finger
Term
Innervation of Extensor Indicis
Definition
Radial nerve
Term
Action of Abductor Pollicis Brevis
Definition
Abduct thumb
Term
Innervation of Abductor Pollicis Brevis
Definition
Median nerve
Term
Action of Flexor Pollicis Brevis
Definition
Flex thumb
Term
Innervation of Flexor Pollicis Brevis
Definition
Median and ulnar nerves
Term
Action of Opponens Pollicis
Definition
Oppose thumb
Term
Innervation of Opponens Pollicis
Definition
Median nerve
Term
Action of Adductor Pollicis
Definition
Adduct thumb
Term
Innervation of Adductor Pollicis
Definition
Ulnar nerve
Term
Action of Abductor Digiti Minimi
Definition
Abduct digit 5
Term
Innervation of Abductor Digiti Minimi
Definition
Ulnar nerve
Term
Action of Flexor Digiti minimi brevis
Definition
Flex digit 5
Term
Innervation of Flexor Digiti minimi brevis
Definition
Ulnar nerve
Term
Action of Opponens digiti minimi
Definition
Oppose digit 5
Term
Innervation of Opponens digiti minimi
Definition
Ulnar nerve
Term
Action of Palmaris Brevis
Definition
Pull skin
Term
Innervation of Palmaris Brevis
Definition
Ulnar nerve
Term
Action of Lumbricals 1 through 4
Definition
Move digits
Term
Innervation of Lumbricals 1 through 4
Definition
Ulnar and median nerves
Term
Action of Dorsal interossei 1 through 4
Definition
Abduct digits
Term
Innervation of Dorsal interossei 1 through 4
Definition
Ulnar nerve
Term
Action of Palmar Interossei 1 through 3
Definition
Adduct digits
Term
Innervation of Palmar interossei 1 through 3
Definition
Ulnar nerve
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