Human Biology - Muscular System

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  1. Biceps Brachii
    • Action: Flex arm at elbow
    • Origin: Scapula
    • Insertion: Radius
  2. Triceps Brachii
    • Action: Extend arm at elbow
    • Origin: Scapula/humerus
    • Insertion: Ulna by tendon over elbow
  3. Quadriceps Femoris
    • Action: Extend lower leg at knee
    • Origin: Illium/femur
    • Insertion: Tibia tendon over patella
  4. Hamstrings
    • Action: Flex lower leg at knee
    • Origin: Ischium/Femur
    • Insertion: Tibia/Fibula
  5. Trapezius
    • Action: Pulls back head/ shrugs shoulders
    • Origin: Occipital bone/ thoracic spines
    • Insertion: Pectoral Girdle
  6. Rectus Abdominus
    • Action: Flex vertebral column forward
    • Origin: Pelvis
    • Insertion: Sternum/ cartilage 4 ribs
  7. Sternocleidomastoid
    • Action: Draw head down on chest/ turn head sideways
    • Origin: Sternum/ clavicle
    • Insertion: Mastoid process of temporal lobe
  8. Gastrochemius
    • Action: Extend foot down at ankle/ Plantar flex sole down
    • Origin: Femur/ knee capsule
    • Insertion: Calcaneus by achilles tendon
  9. Tibialis Anterior
    • Action: Inverts foot up at ankle/ dorsiflex the foot
    • Origin: Tibia
    • Insertion: First metatarsal
  10. Deltoid
    • Action: Lifts arm up at shoulder/ draws arm out to side
    • Origin: Clavicle/ scapula
    • Insertion: Humerus
  11. Latissimus Dorsi
    • Action: Pulls arm across back/ retracts shoulder
    • Origin: Spines of thoracic and lumbar vertebrae/ sacrum/ illium
    • Insertion: Humerus
  12. Pectoralis Major
    • Action: Pulls arm across the chest
    • Origin: Clavicle/ sternum/ ribs 1-6
    • Insertion: Humerus
  13. Frontalis
    • Action: Raise/ Lower eyebrows/ scrunch forehead
    • Origin: Frontal Bone
    • Insertion: Eye Socket
  14. Masseter
    • Action: Raises/ lowers jaw to chew
    • Origin: Zygomatic arch
    • Insertion: Madibular arch
  15. Orbicularis Oculi
    • Action: Wink eye and blink
    • Origin: Around orbit bone (eye socket)
    • Insertion: Around eyelid
  16. Orbicularis Oris
    • Action: Protrudes lips (whistling/ kissing)
    • Origin: Circle around mouth
    • Insertion: Corners of mouth
  17. Gluteus Maximus
    • Action: Extends and rorates thigh/ forms much of buttocks
    • Origin: Illium/ sacrum/ coccyx (pelvic girdle)
    • Insertion: Femur
Card Set
Human Biology - Muscular System
Muscles by name, action, origin and insertion
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