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depressor labii inferioris
sternocleidomastoid
origin- manubrium, clavicle
insertion- mastoid process
action- neck flexion (head the ball!)
digastric
origin- mandible
insertion- hyoid bone
action- opens mouth
trapezius
origin- spinous processes of vertebrae
insertion- spine of scapula
action- adduct scapula
external obliques
latissimus dorsi
origin- vertebrae, iliac crest
insertion- upper humerus
action- adducts arm
infraspinatus
semispinalis
teres minor
teres major
rhomboids
brachialis
erector spinae (more superficial than semispinalis) ?(addition?)
triceps brachii
origin- glenoid cavity, posterior humerus
insertion- olecranon process
action- extends forearm/elbow
biceps brachii
origin- coraciod process, glenoid cavity
insertion- radial tuberosity
action- flexes forearm/elbow
brachioradialis
pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis
origin- medial epicondyle of humerus
insertion- phalanges 2-5
action- flexes fingers
extensor carpi ulnaris
extensor carpi radialis
extensor digitorum
origin- lateral epicondyle of humerus
insertion- phalanges 2-5
action- extends fingers
epicranius
orbucularis oculi
zygomaticus
Origin - zygomatic bone
Insertion- Obicularis Oris
Action- Smiling
depressor anguli oris
obicularis oris
mentalis
buccinators
masseter
origin- zygomatic bone
insertion- angle of mandible
action- chewing
platysma
pectoralis major
origin- clavicle, sternum
insertion- upper humerus
action- flexes & medially rotates arm
serratus anterior
deltoid
origin- clavicle, scapula
insertion- deltoid tuberosity of humerus
action- abduction of arm
pectoralis minor
(behind pectoral is major)
external intercostals
(outside like you can touch muscle)
internal intercostals
(on inside of rib cage)
diaphragm
rectus abdominis
origin- pubic crest
insertion- xiphoid process/costal cartilage
action- flexion of spine
internal obliques
gracilis
sartorius
adductor magnus
adductor longus
pectineus
rectus femoris
origin- acetabulum/ilium
insertion- patella/tibial tuberosity
action- extends lower leg/knew
gluteus maximus
vastus lateralis
vastus medialis
vastus intermedius
tensor fascia latae
(connects to IT band)
semimembranosus
(closest inside)
biceps femoris
origin- ischium and upper femur
insertion- head of fibula and condyle of tibia
action-flexes lower leg/knee
semitendinosus
FOUR QUADRICEP MUSCLES
Rectus femoris.
Vastus lateralis.
Vastus medialis.
Vastus intermedius
fibularis longus
gastrocnemius
origin-Medial and lateral condyles of femur
insertion- calcaneus
action-planter flexion
tibialis anterior
origin- Lateral condyle of tibia
insertion- metatarsals
action-dorsiflexion
soleus
flexor digitorum longus
flexor hallucis longus
THREE HAMSTRING MUSCLES
semitendinosus
semimembranosus
biceps femoris muscles