Superficial Muscle: Origin, Insertion, and Action Flashcards
Masseter
O: zygomatic bone
I: mandible
A: elevation
Zygomaticus
O:zygomatic bone
I:angle of mouth/upper lip
A:retract/elevate
Sternocleidomastoid
O:sternal clavical, and manubrium
I:mastoid of skull
A:flexion
Trapezius
O: 1st rib, occipital
I:scapula/clavicle
A:elevation/retraction/depression/rotation
Deltoid
O: clavicle and scapula
I:deltoid tuberosity, humerus
A:abduction
Latissimus dorsi
O:thoracic/lumbar vertebrae
I:humerus
A:extension/adduction
Pectoralis Major
O:sternum/ribs
I:greater tubercle/humerus
A:flexion/adduction
Pectoralis Minor
O:ribs 2-5
I:coracoid process/scapula
A:depression/protraction/elevation
External Oblique
O:lower 8 ribs
I:alba/iliac crest
A:compresses/depresses
Rectus Abdominis
O:symphysis
I:costal cartilage ribs/xiphoid process
A:depression/flexion
Biceps brachii
O: scapula
I: tuberosity/radius
A:flexion
Triceps Brachii
O: humerus
I: olecranon/ulna
A: extension
Rectus Femoris
O: iliac/ilium
I: tibial tuberosity patella
A: extension
Vastus Lateralis
O: femur
I: tibial tuberosity patella
A: extension
Vastus Medialis
O: femur
I: tibial tuberosity patella
A: extension
Vastus Intermedius
O: femur
I: tibial tuberosity patella
A: extension
Sartorius
O: Iliac
I: tibia
A: flexion/rotation
Gracilis
O: pubis
I: tibia
A: flexion/adduction/rotation
Gluteus Maximus
O: ilium, sacrum, coccyx
I: Femur
A: Extension/rotation
Gluteus Medius
O: iliac
I: femur
A: abducts/rotates
Biceps Femoris
O: femur
I: fibula/tibia
A: flexion/extension/rotation
Semitendonosus
O: ischial
I: tibia
A: flexion/extension/rotation
Semimembranosus
O: ischial
I: tibia
A: flexion/extension/rotation
Tibialis Anterior
O: tibia
I: 1st metatarsal
A: dorsiflexion
Gastrocnemius
O: femoral condyle
I: calcaneus
A: flexion/adduction
Soleus
O:fibula/tibia
I: calcaneus
A:flexion/adduction
