A&P Chapter 10 Part 1

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  1. Prime Mover
    Provides the major force for a specific action
  2. Antagonist
    Oppose primary mover
  3. Synergyst
    Adds force to movement and assists the primary mover
  4. Fixator
    Synergist that immobilizes bone muscle origin so prime mover so prime mover has a stable base on which to act
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  12. Epicranius is made up of what two muscles?
    Frontalis and Occipitalis
  13. Frontalis
    Frontal belly; Raises the eybrows; Wrinkles forehead
  14. Occipitalis
    Pulls scalp to the back of the head
  15. Galea Aponeurotica
    Connects Frontails to Occipitalis; Connective tissue
  16. Orbicularis Oculi
    Blinking of the eye; Closes the eye
  17. Zygomaticus
    Moves outer part of lip; Smile
  18. Orbicularis Oris
    Closes the lips
  19. Levator Labii Superioris
    Pulls upper lip upward to open the mouth
  20. Depressor Labii Inferioris
    Pulls lower lip downward to open mouth
  21. Mentalis
    Wrinkles the chin; Protrude the lower lip (Frowny Face)
  22. Buccinator
    Compresses the cheeck; Sucking; Keeps food in teeth
  23. Platysma
    Tenses the neck; Depresses the mandible
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  25. Temporalis
    Closes the Jaw
  26. Masseter
    Closes the jaw
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  28. Pterygoids (Medial and Lateral)
    Slide jaw side to side while eating; Jaw protrusion
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  30. Suprahyoid
    Anchor tongue; Elevates hyoid; Moves larynx during swallowing; Head flexion
  31. Infrahyoid
    Depresses hyoid bone; Depresses larynx during swallowing and speech; Head flexion
  32. Sternocleidomastoid
    Head flexion; Lateral rotation; Tilts head to it's own side
  33. Scalenes
    Laterral head movement; Moves first and second rib during inspiration
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  35. Splenius Capitis/ Splenius Cericis
    Extend head; Lateral bend head to the same side
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  37. Semispinalis Capitis
    Extend neck; Rotate head to opposite side
  38. Erector Spinae Muscles
    • Iliocostalis
    • Longissimus
    • Spinalis
  39. Iliocostalis
    Trunk extension; Lateral flexion
  40. Longissimus
    Trunk extension; Neck extension
  41. Spinalis
    Extends vertebral column
  42. Semispinalis
    Rotates to opposite side; Trunk extension
  43. Quadratis Lumborum
    Trunk extension; forced inspiration
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  45. External intercostals
    Elevate ribs during inspiration
  46. Internal Intercostals
    Dpress rib cage during expiration
  47. Diaphragm
    Most important in breathing
  48. Internal Obliques
    Compress abdominal wall; Trunk rotation; lateral flexion
  49. External Obliques
    Compress abdominal wall; Trunk rotation; Lateral flexion
  50. Transversus Abdominis
    Compress abdominal wall;
  51. Rectus Abdominis
    Compress abdominal wall; Flex and rotate lumbar vertebrae
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  53. Muscles of the Pelvic floor

    Levator Ani
    Seal inferior outlet of pelvis; Supports Pelvic viscera; Resists pressure when coughing and sneezing; Supports coccyxduring childbirth and defecation
  54. Muscles of the perineum

    Urogenital Diaphragm
    Anterior Half of Perineum- External Urethral Sphincter
    Posterior Half of Perineum- External Anal Sphincter
    Inferior to pelvic floor muscles;Helps control urination; helps with defecation;
  55. Pectoralis Minor
    Moves scapula forward and down
  56. Serratus Anterior
    Moves scapula down, out, and up
  57. Subclavius
    Helps stabalize shoulder
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  59. Trapezius
    Retraction of the shoulder/ scapula
  60. Levator Scapulae
    Elevates shoulder/ Scapula; (Shoulder shrug)
  61. Rhomboids (Minor and Major)
    Scapula stabilizer when the arm is lowered agains resistance (Rowing)
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Card Set:
A&P Chapter 10 Part 1
2011-07-17 15:35:09
YCCC Anatomy Physiology

A&P Chapter 10 part 1 Muscles
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