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Origins and Insertions of Muscles
LECOM Yr 1
75
Anatomy
Graduate
08/05/2011

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Term
Origin of Trapezius
Definition
spinous processes of CVII to TXII; superior nucal line, ligamentum nuchae, external occipital protruberance
Term
insertion of trapezius
Definition
lateral one third of the clavicle, acromion, spine of scapula
Term
origin of latissimus dorsi
Definition
spinous processes of TVII to LV and sacrum, iliac crest, ribs 10-12
Term
insertion of latissimus dorsi
Definition
intertubercular sulcus of humerus
Term
origin of levator scapulae
Definition
transverse processes of CI-CIV
Term
insertion of levator scapulae
Definition
upper portion medial border of scapula
Term
origin rhomboid major
Definition
spinous processes of TII to TV
Term
insertion of rhomboid major
Definition
medial border of scapula between spine and inferior ange
Term
origin of rhomboid minor
Definition
spinous processes of CVII to TI, lower portion of ligamentum nuchae
Term
insertion of rhomboid minor
Definition
medial border of scapula at the spine of the scapula
Term
origin of serratus posterior superior
Definition
spinous processes of CVII to TIII, supraspinous ligaments, lower portion of ligamentum nuchae
Term
insertion of serratus posterior superior
Definition
upper border of ribs 2-5 just lateral to their angles
Term
origin of serratus posterior inferior
Definition
spinous processes of TXI-LIII and supraspinous ligaments
Term
origin of splenius capitis
Definition
spinous processes of CVII-TIV, lower half of ligamentum nuchae
Term
insertion of splenius capitis
Definition
mastoid process, skull below lateral 1/3 of superior nuchal line
Term
origin of splenius cervicis
Definition
spinous processes of TIII to TVI
Term
insertion of splenius cervicis
Definition
transverse processes of CI-CIII
Term
origin of rectus capitis posterior major
Definition
spinous process of CII (axis)
Term
insertion of rectus capitis posterior major
Definition
lateral portion of occipital bone below inferior nuchal line
Term
origin of rectus capitus posterior minor
Definition
posterior tubercle of CI (atlas)
Term
insertion of rectus capitis posterior minor
Definition
medial portion of occipital bone below inferior nuchal line
Term
origin of obliquus capitis superior
Definition
transverse process of CI
Term
insertion of obliquus capitis superior
Definition
occipital bone between superior and inferior nuchal lines
Term
origin of obliquus capitis inferior
Definition
spinous process of axis (CII)
Term
insertion of obliquus capitis inferior
Definition
transverse process of CI (atlas)
Term
origin of deltoid
Definition
lateral 1/3 of clavicle, lateral margin of acromion, spine of scapula
Term
insertion of deltoid
Definition
deltoid tuberosity of humerus
Term
origin of supraspinatus
Definition
medial 2/3 of the supraspinous fossa and the deep fascia that covers the muscle
Term
insertion of supraspinatus
Definition
most superior facet on the greater tubercle of the humerus
Term
origin of infraspinatus
Definition
medial 2/3 of the infraspinous fossa and the deep fascia that covers the muscles
Term
origin of teres minor
Definition
posterior surface of the scapula immediately adjacent to the lateral border of the scapula
Term
insertion of the teres minor
Definition
inferior facet on the posterior surface of the greater tubercle of humerus
Term
origin of teres major
Definition
elongate oval area on the posterior surface of the inferior angle of scapula
Term
insertion of teres major
Definition
medial lip of the intertubercular sulcus on the anterior surface of the humerus
Term
origin of long head of triceps brachii
Definition
infraglenoid tubercle on scapula
Term
insertion of long head of triceps brachii
Definition
olecranon process of ulna
Term
origin of pectoralis major
Definition
clavicular head: anterior surface of medial half of clavicle
sternocostal head: anterior surface of sternum, first seven costal cartilages, sternal head of 6th rib, aponeurosis of external oblique
Term
insertion of pectoralis major
Definition
lateral lip of intertubercular sulcus of humerus
Term
origin of subclavius
Definition
first rib at junction between rib and costal cartilage
Term
insertion of subclavius
Definition
groove on inferior surface of middle 1/3 of clavicle
Term
origin of pectoralis minor
Definition
anterior surfaces and superior borders of ribs 3-5; and deep fascia overlying the related intercostal spaces
Term
insertion of pectoralis minor
Definition
coracoid process of scapula
Term
origin of serratus anterior
Definition
lateral surfaces of upper 8-9 ribs and deep fascia overlying the related intercostal spaces
Term
insertion of serratus anterior
Definition
costal surface of medial border of scapula
Term
origin of subscapularis
Definition
medial 2/3 of subscapular fossa
Term
insertion of subscapularis
Definition
lesser tubercle of humerus
Term
origin of long head of biceps brachii
Definition
supraglenoid tubercle of scapula
Term
origin of short head of biceps brachii
Definition
apex of coracoid process
Term
insertion of biceps brachii
Definition
tuberosity of radius
Term
origin of coracobrachialis
Definition
apex of coracoid process
Term
insertion of coracobrachialis
Definition
linear roughening on midshaft of humerus on medial side
Term
origin of brachialis
Definition
anterior aspect of humerus and adjacent intermuscular septae
Term
insertion of brachialis
Definition
tuberosity of ulna
Term
origin of medial head of triceps brachii
Definition
posterior surface of humerus
Term
origin of lateral head of triceps brachii
Definition
posterior surface of humerus
Term
insertion of triceps brachii
Definition
olecranon
Term
origin of humeral head of flexor carpi ulnaris
Definition
medial epicondyle of humerus
Term
origin of ulnar head of flexor carpi ulnaris
Definition
olecranon and posterior border of ulna
Term
insertion of flexor carpi ulnaris
Definition
pisiform bone, and then via pisohamate and pisometacarpal ligaments into the hamate and base of metacarpal 5
Term
origin of palmaris longus
Definition
medial epicondyle of humerus
Term
insertion of palmaris longus
Definition
palmar aponeurosis of hand
Term
origin of flexor carpi radialis
Definition
medial epicondyle of humerus
Term
insertion of flexor carpi radialis
Definition
base of metacarpals 2 and 3
Term
origin of humeral head of pronator teres
Definition
medial epicondyle and adjacent supraepicondylar ridge
Term
origin of ulnar head of pronator teres
Definition
medial side of coronoid process
Term
insertion of pronator teres
Definition
roughening on lateral surface, midshaft of radius
Term
origin of humero-ulnar head of flexor digitorum superficialis
Definition
medial epicondyle of humerus and adjacent margin of coronoid process
Term
origin of radial head of flexor digitorum superficialis
Definition
oblique line of radius
Term
insertion of flexor digitorum superficialis
Definition
4 tendons which attach to the palmar surfaces of the middle phalanges of the index, middle, ring, and little fingers
Term
origin of flexor digitorum profundus
Definition
anterior and medial surfaces of ulna and anterior medial half of interosseous membrane
Term
insertion of flexor digitorum profundus
Definition
4 tendons, which attach to the palmar surfaces of the distal phalanges of the index, middle, ring, and little fingers
Term
origin of flexor pollicis longus
Definition
anterior surface of radius and radial half of interosseous membrane
Term
insertion of flexor pollicis longus
Definition
palmar surface of base of distal phalanx of thumb
Term
origin of pronator quadratus
Definition
linear ridge on distal anterior surface of ulna
Term
insertion of pronator quadratus
Definition
distal anterior surface of radius
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