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muscle origins, etc

origin, insertion, action

muscleorigininsertionaction
zygomaticus major zygomatic bone skin at corners of mouth smiling
buccinator mandible orbicularis oris compresses cheeks
masseter zygomatic arch mandible elevates mandible
platysma pectoralis major mandible depresses mandible
sternocleidmastoid sternum mastoid process bows head
external intercostals inferior border of rib above superior border of rib below inspiration
internal intercostals superior border of rib below inferior border of rib above expiration
diaphragm sternum central tendon inspiration
pectoralis major clavicle humerus adducts arm
serratus anterior outer surface of ribs 1-8 scapula rotates scapula forward
trapezius scapula occipital bone shrugs shoulders
latissimus dorsi last 4 ribs humerus adducts arms
external oblique last 8 ribs linea alba compresses abdominal contents
internal oblique iliac crest last 3 or 4 ribs compresses abdominal contents
transversus abdominis iliac crest xiphoid process compresses abdominal contents
rectus abdominis pubic crest xiphoid process compresses abdominal contents
deltoid clavicle humerus abducts arm
biceps brachii LH: above scapula humerus supinates arm
triceps brachii LoH: scapula ulna extends forearm
flexor digitorum superficialis radius phalanges 2-5 flexes fingers
flexor carpi radialis humerus metacarpals 1-2 flexes wrist
flexor carpi ulnaris humerus 5th metacarpal flexes wrist
extensor carpi radialis humerus metacarpals 2-3 extends wrist
extensor carpi ulnaris humerus 5th metacarpal adducts little finger
extensor digitorum humerus metacarpals 2-5 extends wrist
gluteus maximus coccyx femur extends thigh
gracilis pubis tibia adducts thigh
tensor fascia latae iliac crest tibia abducts thigh
soleus tibia calcaneus plantar flexion
gastrocnemius knee capsule calcaneus plantar flexion
sartorius iliac spine tibia flexes thigh
biceps femoris LH: ischial tuberosity tibia flexes leg
semitendinosus ischial tuberosity tibia flexes leg
semimembranosus ischial tuberosity tibia flexes leg
rectus femorus iliac spine tibial tuberosity flexes leg
vastus latralis femur tibial tuberosity flexes leg
vastus medialis femur tibial tuberosity flexes leg
vastus intermedius femur ischial tuberosity flexes leg
tibialis anterior tibia metatarsal 1 dorsiflexion
extensor digitorum longus tibia phalanges 2-5 dorsiflexion
fibularis [peroneus] longus fibula metatarsal 1 plantar flexion
orbicularis oculi frontal bone eyelids blinking
orbicularis oris mandible skin at corners of mouth puckers lips
Created by: jortibbs