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All muscles AIO's

Level one

muscleOIA's
temporalis origin temporal bone
temporalis insertion mandible (coronoid process)
temporalis action closes jaw (elevates mandible)
masseter origin zygomatic arch
masseter insertion mandible
masseter action open mouth, elevates and hold hyoid during speech and swallowing
SCM origin manubrium and medial clavicle
SCM insertion mastoid process
SCM action if one side is contracted: rotates/tilts head sideways; both contracted draws head forward and down, flexes neck
trapezius origin spinous process of c7 and all thoracic vertabrae, occipital bone of skull
trapezius insertion clavicle, accromion process, and spine of scapula
trapezius action elevates, depress, and retract scapula
deltoid origin clavicle, accromion process and spine of scapula
deltoid insertion deltoid tuberosity of humerus
deltoid action abducts arm
infraspinatus origin infraspinatus fossa of scapula
infraspinatus insertion greater tuberacle of humerus
infraspinatus action lateral rotation of humers; horizontal abduction of humerus @ shoulder
supraspinatus origin supraspinatus fossa of scapula
supraspinatus insertion greater tubercle of humerus
supraspinatus action abduction of humerus, stabilizes shoulder joint
latissimus dorsi origin spinous processes of thoracic and lumbar vertabrae, crest of SI
latissimus insertion intretubercular groove of humerus
latissimus action adducts and extend arm @ humerus, rotates arm medially @ shoulder, draws shoulder down and backwards
pectoralis major origin sternum, clavicle, cartilage of ribs 1-6, and rectus sheath
pectoralis insertion greater tubercle of humerus
biceps brachii origin short head- cocacoid process of scapula, long head- intertubular groove of humerus
biceps insertion radial tuberosity
biceps action flex forearm,adds in supination of hand
brachialias origin distal anterior humerus
brachialias insertion coronoid process of ulna
brchialias action flexes forearm
brachioradialis origin above lateral epicondyle of humerus
brachioradialis insertion just above styloid process on lateral radius
brachioradialis action flexes forearm
triceps brachii origin long head- scapula, medial and lateral head-humerus
triceps insertion olecranon process of ulna
triceps action extend forearm
flexor carpal ulnaris origin medial epicondyle of humerus and olecranon process of ulna
flexor carpal ulnaris insertion base of fifth metatarsal
flexor carpal ulnaris action flexes hand @ wrist, helps with adduction of hand
flexor carpi radialis origin medial epicondyles of humerus
flexor carpi radialis insertion base of 2nd and 3rd metacarprals
flexor carpi radialis action flexes and abducts hadn @ wrist
extensor carpi ulnaris origin lateral epicondyles of humerus, posterior borders of ulna
extensor carpi ulnaris insertion base of 5th metacarpal
extensor carpi ulnaris action extends and adducts hand @ wrist
extensor carpi radialis longus/brevis origin lateral epicondyle of humerus
extensor radialis longus/brevis insertion longus- base of 2nd metacarpal, brevis- base of 3rd metacarpal
rectus abdominus origin symphasis of pubis
rectus abdominis insertion cartilage of ribs 5-7, xiphoid process
rectus abdominis action flex lumbar vertabral column
quadratus lumborum origin iliac crest, and lower 3 lumbar vertabrae
quadratus lumborum insertion inferios margin of 12th rib and transverse processes of upper 4 lumbar vertabrae
quadratus lumborum action together extends spine @ lumbar region, singly flexes spine, maintains upright posture
gluteus maximus origin iliac crest sacrum, and coccyx
gluteus maximus insertion IT tract, posterior femur
gluteus maximus action extends thigh (femur), laterally rotate femur (hip)
gluteus medius origin upper ilium
gluteus medius insertion lateral part of greater trochanter
gluteus medius action abducts and medially rotates femur (hip), steadies pelvis
sartorius origin ASIS
sartorius insertion medial surface of tibia, pes anseranus
sartorius action flexes and laterally rotates thigh, flexes knee
adductor longus/brevis origin pubis
adductor longus/brevis insertion linea aspera of femur
adductor longus/brevis action adducts, flexes, and laterally rotates femur (hip)
gracilis origin pubis
gracilis insertion medial surface of tibia
gracilis action flexes and medially rotates knee, adducts thigh (hip)
rectus femoris origin AIIS, and lip of acetabulum
rectus femoris insertion patella to tibial tuberosity
rectus femoris action flexes femur @ hip, extends leg (knee)
vastus medialis/laeralis origin linea aspera of femur
vastus medialis/lateralis insertion patella to tibial tuberosity
vastus medialis/lateralis action extends leg
semimembranosus origin ishial tuberosity
semimembranosus insertion medial condyle of posterior tibia
semimembranosus action extends femur (hip), flexes knee, and medially rotates leg
semitendinosus origin ishial tuberosity
semitendinosus insertion proximal medial protion of posterior tibia
semitendinosus action extends femur (hip), flexes knee, helps to medially rotate leg
biceps femoris long head origin ishial tuberosity
biceps femoris LH insertion head of fibula and lateral condyle of tibia
biceps femoris LH action extends and laterally rotates femur, flexes knee
biceps femoris short head origin linea aspera of femur
biceps femoris SH insertion head of fibula and lateral condyle of tibia
biceps femoris SH action flexes knee
tbialis anterior origin lateral condyle and upper lateral portion of tibia
tibialis anterior insertion first cuneiform and 1st metatarsal
tibialis anterior action dorsiflexion and inversion of foot (ankle)
gastrocnemius origin 2 head medial and lateral condyles of femur
gastrocnemius insertion plantar surface of calcaneus
gastrocnemius action plantar flex foot, flexes knee
soleus origin medial border of tibia, head of fibula
soleus insertion plantar surface of calcaneus
soleus action plantar flex foot (ankle), steadies leg while standing
Created by: Rmorris
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