muscles from lab 1&2 Flashcards
origin of the sternocleidomastoid
clavicle and manubrium of sternum
origin of the trapezius
occipital protuberance, C7-T12 spinous processes
origin of the levator scapulae
C1-C4 transverse processes
origin of the rhomboid Minor
C7-T1 spinous processes
origin of the rhomboid major
T2-T5 spinous process
origin of the pectoralis minor
Ribs 3-5
origin of the serratus anterior
Ribs 1-8
insertion of the sternocleidomastoid
mastoid process of the temporal bone
insertion of the trapezius
clavicle; acromion process and spine of scapula
insertion of levator scapulae
superior angle of the scapula
insertion of rhomboid minor
medial border of scapula
insertion of rhomboid major
medial border of scapula
insertion of pectoralis minor
coracoid process of scapula
insertion of serratus anterior
medial border of scapula
action of sternocleidomastoid (3)
head flexion, lateral flexion of head to same side, rotation of head to opposite side
action of upper trapezius (2)
head extension and shoulder girdle elevation
action of middle trapezius (2)
shoulder girdle retraction and stabilization
action of lower trapezius (1)
shoulder girdle depression
action of levator scapulae (1)
shoulder girdle elevation
action of rhomboid minor (1)
shoulder girdle retraction
action of rhomboid major (1)
shoulder girdle retration
action of pectorals minor (1)
shoulder girdle depression
action of serratus anterior (1)
shoulder girdle protraction
origin of latissimus dorsi
spinous process of T7 through sacrum; lumbar fascia
origin of teres major
posterior surface of scapula at inferior angle
origin of pectoralis major
clavicle; sternum; true ribs
origin of deltoid
clavicle; acromion process and spine of scapula
origin of supraspinatus
supraspinous fossa of scapula
origin of infraspinatus
infraspinous fossa of scapula
origin of teres minor
lateral border of scapula
origin of subscapularis
subscapular fossa of scapula
insertion of latissimus dorsi
intertubercular groove of humerus
insertion of teres major
intertubercular groove of humerus
insertion of pectoralis major
intertubercular groove of humerus
insertion of deltoid
deltoid tuberosity of humerus
insertion of supraspinatus
greater tubercle of humerus
insertion of infraspinatus
greater tubercle of humerus
insertion of teres minor
greater tubercle of humerus
insertion of subscapularis
lesser tubercle of humerus
action of latissimus dorsi (3)
shoulder adduction, extension, medial rotation
action of teres major (3)
shoulder adduction, extension, medial rotation
action of pectoralis major (3)
shoulder adduction, flexion, medial rotation
action of anterior deltoid (1)
shoulder flexion
action of middle deltoid (1)
shoulder abduction
action of posterior deltoid (1)
shoulder extension
action of supraspinatus (1)
shoulder abduction
action of infraspinatus (1)
shoulder lateral rotation
action of teres minor (1)
shoulder lateral rotation
action of subscapularis (1)
shoulder medial rotation