Muscle Origins and Insertions z
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| Frontalis | aponeurosis - soft tissue of eyebrows - wrinkle forehead
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| Occipitalis | mastoid process, occipital bone
aponeurosis -
pull scalp backward
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| Orbicularis oris | maxilla, mandible, septum of nose
lips -
pout
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| Orbicularis Occuli | nasal portion of frontal bone, frontal process of maxilla, medial palpebral ligament
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tissues of eyelids (palpebrae)
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blink
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| Zygomaticus Major | smile
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| Masseter | raise mandible
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| Temporalis | portion of frontal, parietal and temporal bone
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coronoid process of mandible
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act with masseter to raise mandible
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| Trapezius | occipital bone, ligamentum nuchae, spinous processes of 7th cervical and all thoracic vertebrae
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spine and acromion of scapula, outer third of clavicle
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raise scapula
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| Sternocleidomastoid | manubrium of sternum, sternal end of clavicle
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mastoid process
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flex head forward and downward onto chest
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| Pectoralis Major | clavicle, sternum, costal cartilages, aponeurosis of ext oblique
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groove between greater and lesser tubercles of humerus
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flex humerus
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| Deltoid | lateral third of clavicle, acromion and spine of scapula
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deltoid tuberosity of humerus
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abduct humerus
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| Internal Intercostalis | expiration (lower ribs)
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| External Intercostalios | inspiration (raise ribs)
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| Latissimus Dorsi | broad aponeurosis attached to thoracic and lumbar vertebrae, spine of sacrum, iliac crest, lower ribs
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groove between greater and lesser tubercles of humerus
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draw shoulder downward and backward
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| Supraspinatus | supraspinatus fossa of scapula
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greater tubercle of humerus
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abducts humerus
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| Infraspinatus | rotate humerus laterally
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| Teres Major | rotate humerus medially
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| Subscapularis | rotate humerus medially
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| External Oblique Internal Oblique Rectus Abdominus | keep abdominal organs compressed
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| Biceps Brachii | medial tendon attached to coracoid process, lateral tendon fits into groove between greater and lesser tubercles of humerus
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radial tuberosity of radius
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flex forearm
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| Brachialis | lower half of humerus
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front surface of coronoid process of ulna
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flex forearm
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| Brachioradialis | above lateral epicondyle of humerus
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lateral surface of radius above styloid process
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flex forearm
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| Triceps Brachii | long head - scapula, lateral head - posterior surface of humerus, medial head - surface below radial groove
oleocranon process of ulna
extend forearm
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| Flexor Carpi Radialis | medial epicondyle of humerus
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procimal portion of 2nd and 3rd metacarpals
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abduct hand
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| Flexor Carpi Ulnaris | medial epicondyle of humerus, olecranon process of ulna - tendon that attach to base of 3rd metacarpal - adduct hand
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| Flexor Digitorium Superficialis | humerus, ulna, radius - tendons atached to middle phalanges of 2-5 fingers - flex fingers
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| Palmaris Longus | tenses palmar fascia
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| Extensor Carpi Radialis Longus, Brevis | humerus - extension of wrist and hand
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| Extensor Digitorium | lateral epicondyle of humerus - extend fingers
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| Gluteus Maximus | ilium, sacrum, coccyx - iliotibial tract, posterior part of the femur - rotate femur
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| Gluteus Minimus | ilium - lateral part of great trochanter - medially rotate femur
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| Biceps Femoris | tendon from anterior inferior iliac spine and from groove above acetabulum - common tendon iinserting into tibia - flex thigh
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| Vastus Lateralis | lateral lip of linea asper- common tendon inserting into tibia - flex thigh
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| Vastus Medialis | linea aspera - common tendon iinserting into tibia - flex thigh
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| Vastus Intermedius | front and lateral suface of femur - common tendon iinserting into tibia - flex thigh
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| Sartorius | anterior, superior spine of ileum - medial surface of tibia - rotate leg laterally
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| Tensor Fascia Latae | anterior outer lip of iliac crest, anterior superiod spine, deep surface of fascia latae - between 2 surfaces of iliotibial tract - flex thigh
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| Gracilis | flex thigh
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| Gastrocnemius | posterior surface of medial and lateral condyles of femur - tendon of Achilles that insert on calcaneous of foor - plantar flexion
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| Soleus | heads of fibula and tibia - tendon of Achilles - plantar flexion
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