A&P Class Exam #4 - Major Skeletal Muscles

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trulyabaker
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49344
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A&P Class Exam #4 - Major Skeletal Muscles
Updated:
2010-11-13 22:12:55
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Major Skeletal Muscles (Teacher's Table)
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  1. (Epicranius) Frontalis
    • Body Region: Face
    • Origin: Occipital bone
    • Insertion: Skin and muscles around the eye
    • Action: Raises eyebrows (surprise)
  2. (Epicranius) Occipitalis
    • Body Region: Face
    • Origin: Occipital bone
    • Insertion: Skin and muscles around eye
    • Action: Raises eyebrows (surprise)
  3. Orbicularis oculi
    • Body Region: Face
    • Origin: Maxillary and frontal bones
    • Insertion: Skin around eye
    • Action: Closes eye (blinking)
  4. Orbicularis oris
    • Body Region: Face
    • Origin: Muscles near the mouth
    • Insertion: Skin of central lip
    • Action: Closes lips (kissing)
  5. Buccinator
    • Body Region: Face
    • Origin: Outer surfaces of maxilla and mandible (wall of cheeks)
    • Insertion: Orbicularis oris
    • Action: Compresses cheeks (blowing)
  6. Zygomaticus
    • Body Region: Face
    • Origin: Zygomatic bone
    • Insertion: Corner of mouth
    • Action: Raises corner of mouth (smiling)
  7. Platysma
    • Body Region: Face
    • Origin: Fascia in upper chest
    • Insertion: Lower border of mandible
    • Action: Draws corner of mouth down (frowning)
  8. Masseter
    • Body Region: Mastication
    • Origin: Lower border of zygomatic arch
    • Insertion: Lateral surface of mandible
    • Action: Elevates mandible
  9. Temporalis
    • Body Region: Mastication
    • Origin: Temporal bone
    • Insertion: Coronoid process and anterior ramus of mandible
    • Action: Elevates mandible
  10. Medial Pterygoid
    • Body Region: Mastication
    • Origin: Sphenoid, palatine, and maxillary bones
    • Insertion: Medial surface of mandible
    • Action: Elevates mandible (closes the jaw) and moves side to side
  11. Lateral Pterygoid
    • Body Region: Mastication
    • Origin: Sphenoid bone
    • Insertion: Anterior surface of Mandibular condyle
    • Action: Depresses and protracts mandible (opens the mouth), moves side to side
  12. Sternocledomastoid
    • Body Region: Neck & Vertebral Column
    • Origin: Sternum & clavicle
    • Insertion: Temporal
    • Action: Flexes head, raises sternum, pulls head to one side (head bends toward the chest)
  13. Splenius capitis
    • Body Region: Neck & Vertebral Column
    • Origin: Cervical & thoracic vertebrae
    • Insertion: Occipital
    • Action: Extends neck, rotates head, bends head to one side (bring head into upright position)
  14. Semispinalis capitis
    • Body Region: Neck & Vertebral Column
    • Origin: Cervical & thoracic vertebrae
    • Insertion: Occipital
    • Action: Extends head, rotates head, bends head to one side
  15. External oblique
    • Body Region: Abdominal Wall
    • Origin: Lower ribs
    • Insertion: Ilium & linea alba
    • Action: Tenses abdominal wall & compresses contents
  16. Rectus abdominis
    • Body Region: Abdominal Wall
    • Origin: Pubis
    • Insertion: Xiphoid
    • Action: Tenses abdominal wall & flexes vertebrae
  17. Trapezius
    • Body Region: Pectoral girdle
    • Origin: Occipital bone & vertebrae, thoracic and cervical
    • Insertion: Clavicle & scapula
    • Action: Rotate, raises & pulls scapula medially, or pull scapula and shoulder downward (with other muscles, can pull the head backward or to one side)
  18. Rhomboideus major
    • Body Region: Pectoral girdle
    • Origin: thoracic vertebrae
    • Insertion: Scapula
    • Action: Raises (elevates) and adducts (retracts) and rotates scapula
  19. Levator scapulae
    • Body Region: Pectoral girdle
    • Origin: Cervical vertebrae
    • Insertion: Scapula
    • Action: Elevates scapula
  20. Serratus anterior
    • Body Region: Pectoral girdle
    • Origin: Ribs
    • Insertion: Scapula
    • Action: Pulls scapula anteriorly & downward
  21. Pectoralis
    minor
    • Body Region: Pectoral girdle
    • Origin: Ribs
    • Insertion: Scapula
    • Action: Pulls scapula anteriorly (upward) & downward or raises ribs
  22. Pectoralis major
    • Body Region: Arm
    • Origin: Clavicle, sternum & ribs
    • Insertion: Humerus
    • Action: Flexes, adducts & rotates arm medially
  23. Teres major
    • Body Region: Arm
    • Origin: Scapula
    • Insertion: Humerus
    • Action: Extends, adducts & rotates arm medially
  24. Teres minor
    • Body Region: Arm
    • Origin: Scapula
    • Insertion: Humerus
    • Action: Rotates arm laterally
  25. Supraspinatus
    • Body Region: Arm
    • Origin: Scapula
    • Insertion: Humerus
    • Action: Abducts the arm
  26. Infraspinatus
    • Body Region: Arm
    • Origin: Scapula
    • Insertion: Humerus
    • Action: Rotates arm laterally
  27. Deltoid
    • Body Region: Arm
    • Origin: Scapula and clavicle
    • Insertion: Humerus
    • Action: Abducts, extends & flexes arm
  28. Biceps brachii
    • Body Region: Forearm & Hand
    • Origin: Scapula
    • Insertion: Radius
    • Action: Flexes forearm at elbow and rotates hand laterally
  29. Brachialis
    • Body Region: Forearm & Hand
    • Origin: Humerus
    • Insertion: Ulna
    • Action: Flexes forearm at elbow
  30. Brachioradialis
    • Body Region: Forearm & Hand
    • Origin: Humerus
    • Insertion: Radius
    • Action: Flexes forearm at elbow
  31. Triceps brachii
    • Body Region: Forearm & Hand
    • Origin: Scapula & Humerus
    • Insertion: Ulna
    • Action: Extends forearm at elbow (extends elbow)
  32. Flexor digitorum superficialis
    • Body Region: Forearm & Hand
    • Origin: Humerus, radius & ulna
    • Insertion: Tendons of fingers
    • Action: Flexes fingers & hand (wrist)
  33. Extensor digitorum
    • Body Region: Forearm & Hand
    • Origin: Humerus
    • Insertion: Phalanges
    • Action: Extends fingers
  34. Gluteus maximums
    • Body Region: Leg
    • Origin: Sacrum, coccyx & ilium
    • Insertion: Femur
    • Action: Extends thigh at hip
  35. Gluteus medius
    • Body Region: Leg
    • Origin: Ilium
    • Insertion: Femur
    • Action: Abducts & rotates thigh medially
  36. Tensor fasciae latae
    • Body Region: Leg
    • Origin: Ilium
    • Insertion: Fascia of thigh
    • Action: Abducts, flexes & rotates thigh medially
  37. Gracilis
    • Body Region: Leg
    • Origin: Pubis
    • Insertion: Tibia
    • Action: Adducts thigh & flexes leg at the knee
  38. Biceps femoris
    • Body Region: Leg
    • Origin: Femur & ischium
    • Insertion: Fibula & tibia
    • Action: Flexes & rotates leg laterally, extends thigh
  39. Semitendinosus
    • Body Region: Leg
    • Origin: Ischium
    • Insertion: Tibia
    • Action: Flexes & rotates leg medially, extends thigh
  40. Semimembranosus
    • Body Region: Leg
    • Origin: Ischium
    • Insertion: Tibia
    • Action: Flexes & rotates leg medially, extends thigh
  41. Sartorius
    • Body Region: Leg
    • Origin: Ilium
    • Insertion: Tibia
    • Action: Flexes, abducts & rotates thigh laterally
  42. Rectus femoris
    • Body Region: Leg
    • Origin: Ilium
    • Insertion: Patella
    • Action: Extends leg at knee
  43. Vastus lateralis
    • Body Region: Leg
    • Origin: Femur
    • Insertion: Patella
    • Action: Extends leg at knee
  44. Vastus medialis
    • Body Region: Leg
    • Origin: Femur
    • Insertion: Patella
    • Action: Extends leg at knee
  45. Gastrocnemius
    • Body Region: Foot
    • Origin: Femur
    • Insertion: Calcaneous
    • Action: Plantar flexion & flexion of leg at knee
  46. Soleus
    • Body Region: Foot
    • Origin: Fibula & tibia
    • Insertion: Calcaneous
    • Action: Planter flexion
  47. Tibialis anterior
    • Body Region: Foot
    • Origin: Tibia
    • Insertion: Tarsals
    • Action: Dorsiflexion & inversion of foot
  48. Fibalaris longus
    • Body Region: Foot
    • Origin: Fibula & tibia
    • Insertion: Tarsals
    • Action: Plantar flexion & eversion of foot
  49. Body Region: Origin:Insertion: Action:

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