Muscles Origins, Insertions, And Actions Flashcards
Occipialis
Occipital bone
Aponeurosis
Pulls scalp backwards
Orbicularis oris
Maxilla
On the lips
Closes lips
Orbicularis oculi
Maxilla
Eyelids
Blinking and squinting
Zygomaticus
Zygomatic
Orbicularis oris
Smiling
Platysma
Clavicle
Mandible
Lowers lip
Masseter
Zygomatic
Mandible
Raises mandible (chewing)
Temporalis
Temporal bone
Mandible
Raises mandible (chewing)
Buccinator
Maxilla, mandible
Orbiclaris oris
Compresses cheek to hold food when chewing
Pectoralis major
Clavicle, sternum
Humorous
Adducts and flexes humorous
External intercostals
Upper rib
Lower rib
Inspiration
Internal intercostals
Upper rib
Lower rib
Expiration
Trapezius
Occipital bone
Scapula
Adducts scapula and draws head back
Deltoid
Clavicle, acromion and scapula
Deltoid tuberosity
Abducts and flexes arm
Latissimus dorsi
Sacrum
Humorous
Adducts and extends arm
Biceps brachii
Scapula
Radius
Flexes and supinates forearm
External oblique
5th to 12th rib
Liliac crest
Compresses abdomen
Rectus abdominis
Pubic crest
Xiphoid process
Compresses abdomen
Gluteus Maximus
Lleum and sacrum
Femur
Extends and addicts thigh
Hamstrings
Ischium and femur
Tibia and fibula
Flexes and rotates thigh
Quadriceps femoris
Ischium, femur, and linen aspera
Common tendon to tibia
Extends leg
Gastrocnemius
Femur
Tendon of calcaneus
Plantar flexes foot
Tibialis anterior
Tibia
Tarsal and 1st metatarsal
Dorsiflexes and inverts foot
Frontalis
Aponeurosis
Eyebrows
Wrinkles forehead or raises eyebrows
