A&P Chapter 10 Part 1

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Author:
matewskic
ID:
94094
Filename:
A&P Chapter 10 Part 1
Updated:
2011-07-17 11:35:09
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YCCC Anatomy Physiology
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A&P Chapter 10 part 1 Muscles
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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
  5. Epicranius is made up of what two muscles?
    Frontalis and Occipitalis
  6. Frontalis
    Frontal belly; Raises the eybrows; Wrinkles forehead
  7. Occipitalis
    Pulls scalp to the back of the head
  8. Galea Aponeurotica
    Connects Frontails to Occipitalis; Connective tissue
  9. Orbicularis Oculi
    Blinking of the eye; Closes the eye
  10. Zygomaticus
    Moves outer part of lip; Smile
  11. Orbicularis Oris
    Closes the lips
  12. Levator Labii Superioris
    Pulls upper lip upward to open the mouth
  13. Depressor Labii Inferioris
    Pulls lower lip downward to open mouth
  14. Mentalis
    Wrinkles the chin; Protrude the lower lip (Frowny Face)
  15. Buccinator
    Compresses the cheeck; Sucking; Keeps food in teeth
  16. Platysma
    Tenses the neck; Depresses the mandible
  17. Temporalis
    Closes the Jaw
  18. Masseter
    Closes the jaw
  19. Pterygoids (Medial and Lateral)
    Slide jaw side to side while eating; Jaw protrusion
  20. Suprahyoid
    Anchor tongue; Elevates hyoid; Moves larynx during swallowing; Head flexion
  21. Infrahyoid
    Depresses hyoid bone; Depresses larynx during swallowing and speech; Head flexion
  22. Sternocleidomastoid
    Head flexion; Lateral rotation; Tilts head to it's own side
  23. Scalenes
    Laterral head movement; Moves first and second rib during inspiration
  24. Splenius Capitis/ Splenius Cericis
    Extend head; Lateral bend head to the same side
  25. Semispinalis Capitis
    Extend neck; Rotate head to opposite side
  26. Erector Spinae Muscles
    • Iliocostalis
    • Longissimus
    • Spinalis
  27. Iliocostalis
    Trunk extension; Lateral flexion
  28. Longissimus
    Trunk extension; Neck extension
  29. Spinalis
    Extends vertebral column
  30. Semispinalis
    Rotates to opposite side; Trunk extension
  31. Quadratis Lumborum
    Trunk extension; forced inspiration
  32. External intercostals
    Elevate ribs during inspiration
  33. Internal Intercostals
    Dpress rib cage during expiration
  34. Diaphragm
    Most important in breathing
  35. Internal Obliques
    Compress abdominal wall; Trunk rotation; lateral flexion
  36. External Obliques
    Compress abdominal wall; Trunk rotation; Lateral flexion
  37. Transversus Abdominis
    Compress abdominal wall;
  38. Rectus Abdominis
    Compress abdominal wall; Flex and rotate lumbar vertebrae
  39. Muscles of the Pelvic floor

    Levator Ani
    Coccygeus
    Seal inferior outlet of pelvis; Supports Pelvic viscera; Resists pressure when coughing and sneezing; Supports coccyxduring childbirth and defecation
  40. 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;
  41. Pectoralis Minor
    Moves scapula forward and down
  42. Serratus Anterior
    Moves scapula down, out, and up
  43. Subclavius
    Helps stabalize shoulder
  44. Trapezius
    Retraction of the shoulder/ scapula
  45. Levator Scapulae
    Elevates shoulder/ Scapula; (Shoulder shrug)
  46. Rhomboids (Minor and Major)
    Scapula stabilizer when the arm is lowered agains resistance (Rowing)

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