muscles part 1 Flashcards
sternocleidomastoid orgin
sternum and clavicle
sternocleidomastoid insertion
mastoid process
flex head forward and individual muscle tilts side to side
sternocleidomastoid muscle actions
iliocostalis , longissimus , and spinales is apart of what muscle
erector spinae
origin of erector spinae
various locations along the spine
insertion of erector spinae
various locations
extension of hips, trunk, and neck
actions of erector spine
trapezius origin
locations long the spine
trapezius insertions
clavicle and scapula
neck extension, scapular elevation and adduction
actions of trapezius
pectoral major origin
clavicle and coastal cartilage of upper ribs
pectoral major insertion
intertubercular groove of humerous
shoulder horizontal adduction, internal rotation, flexion and extension
pectoral major actions
rhomboids origin
spinous processes of C-7 - T-5
rhomboids insertion
medial border of scapula
scapular adduction
rhomboids actions
Lattisimus Dorsi origin
spinous process of the lower thoracic spine
deltoid orgin
clavicle and scapula
Lattisimus insertion
lesser tubercle of the humerus
should adduction , internal rotation/ extension
Lattisimus actions
deltoid insertion
deltoid tuberosity
shoulder abduction
deltoid action
when anterior deltoid flexes ….
adducts shoulder
when posterior deltoid extends ……
abducts shoulder
suprapinatus, infraspinatus , teres minor , subscrapularis
muscles that make up the rotator cuff
origin of rotator cuff
proximal humerous
compression of glenohumeral joint and shoulder internal/external rotation
actions of rotator cuff
origin of biceps brachii
coracoid process and gleniod process
insertion of biceps brachii
radial tuberosity
elbow flexion , shoulder flexion and forearm supination
actions of biceps brachii
brachialis origin
anterior surface of the humerus
brachialis insertion
proximal ulna
elbow flexion
brachialis action
triceps brachii insertion
olecranon process
triceps brachii origin
the posterior surface of the humerus and glenoid fossa
elbow extnesion
triceps brachii
pronator teres, flexor carpi, radialis, palmaris longus, flexor carpi ulnaris
forarm flexor-pronator group
forarm flexor-pronator group orgin
medial elbow
forarm flexor-pronator insertion
various location on forearm and hand
elbow flexion, wrist flexion, and forearm pronation
forarm flexor-pronator action
brachloradialis , extensor carpi raidals longus/ brevis ectensor, extensor digitorum, extnensor digiti minimi, extensor carpi ulnaris and aconeus
forearm extensor-supinator group
forearm extensor-supinator insertion
various locations on forearm and hand
forearm extensor-supinator group orgin
lateral elbow
elbow extension, wrist extension, and forearm supination
forearm extensor-supinator actions
abdominal muscles origin
various locations
adominal muscles insertion
various locations
trunk flextion lateral flextion and rotation
abdominal muscle movments