bleh Flashcards
Pectoralis major (muscle group)
muscles crossing shoulder joint
Pectoralis major(action)
arm flexion; rotates arm medially; adducts arm
Pectoralis major (origin)
sternal end of clavicle; sternum; cartilage of ribs1-6
Pectoralis major (insertion)
Intertubercular sulcus and greater tubercle of humerus
Latissimus dorsi (muscle group)
muscles crossing shoulder joint
Latissimus dorse(action)
arm extension; adducts arm; medially rotates arm at shoulder
Latissumus dorsi(origin)
spines of T(7)-L(5); ribs 9-12; iliac crest
Latissumus dorsi (insertion)
intertubercular suclus of humerus
Deltiod(muscle group)
muscles crossing shoulder joint
Deltiod(action)
arm abduction;flexion and medial rotation of humerus; extension and lateral rotation of arm
Deltoid(origin)
lateral 3rd of clavicle, acromion and spine of scapula
Deltoid (insertion)
deltoid tuberosity of humerus
Trapezius(muscle group)
posterior thorax
Trapezius(action)
stabilizes, raises, retracts and rotates scapula
Trapezius(origin)
occipital bone; spinous process of C7 and all thoracic vertebrae
Trapezius(insertion)
acromion and spine of scapula; lateral 3rd of clavicle
Pectoralis minor (muscle group)
anterior thorax
Pectoralis minor (action)
draws scapula forward and downward
Pectoralis minor(origin)
anterior surfaces of ribs 3-5
pectoralis minor(insertion)
coracoid process of scapula
External oblique(muscle group)
anterior and lateral abdominal wall
External oblique(action)
flexes vertrebral column; compress abdominal wall; rotating trunk and flexing laterally
External oblique(origin)
outer surface of ribs 5-12
External oblique (insertion)
linea alba; pubic crest; iliac crest
Brachioradialis(muscle group)
anterior forearm
Brachioradialis(action)
forearm flexion; stabilizes the elbow during rapid flexion and extension
Brachioradialis(origin)
lateral supracondylar ridge at distal end of humerus
Brachioradialis(insertion)
styloid process of radius.
Pronator teres (muscle group)
anterior superficial forearm
Pronator teres (action)
pronates forearm; weak flexor of elbow
Pronator teres(origin)
medial epicondyle of humerus; coronoid process of ulna
Pronator teres(insertion)
lateral radius
Flexor carpi radialis (muscle group)
anterior superficial forearm
Flexor carpi radialis (action)
powerful flexor of wrist, abducts hand
Flexor carpi radialis (origin)
medial epicondyle of humerus
Flexor carpi radialis (insertion)
base of 2nd and 3rd metacarpals
Palmaris longus (muscle group)
anterior superficial forearm
Palmaris longus(action)
Tenses skin and fascia of palm during hand movements
Palmaris longus(origin)
medial epicondyle of humerus
Palmaris longus(insertion)
palmar alponeurosis
Flexor carpi ulnaris (muscle group)
anterior superficial forearm
Flexor carpi ulnaris (action)
Wrist flexor, adducts hand
Flexor carpi ulnaris(origin)
medial epicondyle of humerus; olecranon process and posterior surface of ulna