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Muscles II

  1. Sternohyoid
    - Origin
    - Insertion
    - Action
    • Origin: sternum
    • Insertion: hyoid 
    • Action: depresses hyoid bone
  2. Sternomastoid
    - Origin
    - Insertion
    - Action
    • Origin: sternum
    • Insertion: mastoid process/temporal bone
    • Action: turn and depress head
  3. Mylohyoid
    - Origin
    - Insertion
    - Action
    • Origin: mandible
    • Insertion: hyoid 
    • Action: raise floor of mouth
  4. Masseter
    - Origin
    - Insertion
    - Action
    • Origin: zygoma/malar
    • Insertion: dentary
    • Action: close mouth
  5. Digastric
    - Origin
    - Insertion
    - Action
    • Origin: occipital bone
    • Insertion: dentary
    • Action: opens mouth
  6. Pectoantebrachialis
    - Origin
    - Insertion
    - Action
    • Origin: sternum
    • Insertion: fascia of forearm
    • Action: adducts humerus
  7. Xiphihumeralis, pectoralis major, pectoralis minor
    - Origin
    - Insertion
    - Action
    • Origin: sternum
    • Insertion: humerus
    • Action: adduct humerus
  8. External oblique
    - Origin
    - Insertion
    - Action
    • Origin: posterior ribs & lumbodorsal fascia 
    • Insertion: linea alba
    • Action: compress abdomen
  9. Internal oblique
    - Origin
    - Insertion
    - Action
    • Origin: pelvis & lumbodorsal fascia
    • Insertion: linea alba
    • Action: compress abdomen
  10. Transversus abdominus 
    - Origin
    - Insertion
    - Action
    • Origin: ribs, lumbar vertebrae, ilium
    • Insertion: linea alba
    • Action: compress abdomen
  11. Rectus abdominus
    - Origin
    - Insertion
    - Action
    • Origin: pubic symphysis 
    • Insertion: costal cartilages 
    • Action: compress abdomen
  12. Clavobrachialis 
    - Origin
    - Insertion
    - Action
    • Origin: clavicle
    • Insertion: ulna
    • Action: flex humerus
  13. Acromiotrapezius 
    - Origin
    - Insertion
    - Action
    • Origin: cervical & thoracic vertebrae 
    • Insertion: scapula
    • Action: holds scapula in place
  14. Clavotrapezius
    - Origin
    - Insertion
    - Action
    • Origin: occipital bone & axis
    • Insertion: clavicle 
    • Action: draws scapula cranially & dorsally
  15. Spinotrapezius
    - Origin
    - Insertion
    - Action
    • Origin: thoracic vertebrae
    • Insertion: scapula
    • Action: pulls scapula posteriorly
  16. Latissimus dorsi
    - Origin
    - Insertion
    - Action
    • Origin: thoracic & lumbar vertebrae
    • Insertion: humerus
    • Action: draw humerus back and dorsally
  17. Levator scapula ventralis
    - Origin
    - Insertion
    - Action
    • Origin: occipital bone & atlas 
    • Insertion: scapula 
    • Action: pulls scapula cranially
  18. Acromiodeltoid & spinodeltoid
    - Origin
    - Insertion
    - Action
    • Origin: scapula
    • Insertion: humerus 
    • Action: flex & laterally rotate humerus
Author
tinibr11
ID
225205
Card Set
Muscles II
Description
EEOB 2510: Muscles II, origins, insertions, actions
Updated

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