Muscles 3 McKinley and O’Laughlin Chapter 12
Introduction <ul><li>List the 4 compartments of the thigh. </li></ul><ul><ul><li>Anterior -  extend knee, flex thigh </li>...
 
Introduction <ul><li>What structure forms the compartments of the thigh? </li></ul><ul><ul><li>Fascia lata </li></ul></ul>
Move the Coxal Joint/Thigh <ul><li>Name:  Psoas major </li></ul><ul><li>Origin: Transverse processes of L1-L5 </li></ul><u...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Iliacus </li></ul><ul><li>Origin: Iliac fossa </li></ul><ul><li>Insertion: Lesse...
 
Introduction <ul><li>By what name are the iliacus and psoas major referred to after they pass deep to the  inguinal ligame...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Sartorius </li></ul><ul><li>Origin: Anterior superior iliac spine </li></ul><ul>...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Adductor longus </li></ul><ul><li>Origin: Pubis (below crest) </li></ul><ul><li>...
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Adductor brevis </li></ul><ul><li>Origin: Body and inferior ramus of pubis </li>...
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Gracilis </li></ul><ul><li>Origin: Body and inferior ramus of pubis </li></ul><u...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Pectineus </li></ul><ul><li>Origin: Pectineal line of pubis </li></ul><ul><li>In...
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Adductor magnus </li></ul><ul><li>Origin: Inferior ramus of pubis. Ramus of isch...
 
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Tensor Fasciae Latae </li></ul><ul><li>Origin: Anterior superior iliac spine. An...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Gluteus maximus </li></ul><ul><li>Origin: Iliac crest. Dorsal sacrum and coccyx ...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Gluteus medius </li></ul><ul><li>Origin: Lateral ilium </li></ul><ul><li>Inserti...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Gluteus minimus </li></ul><ul><li>Origin: Inferolateral ilium </li></ul><ul><li>...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Piriformis </li></ul><ul><li>Origin: Anterior sacrum </li></ul><ul><li>Insertion...
 
 
 
 
 
 
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Biceps femoris </li></ul><ul><li>Origin:  </li></ul><ul><ul><li>Long head: Ischi...
 
 
Move the Coxal Joint/Thigh <ul><li>Name:  Semimembranosus </li></ul><ul><li>Origin: Ischial tuberosity </li></ul><ul><li>I...
 
Move the Coxal Joint/Thigh <ul><li>Name:  Semitendinosus </li></ul><ul><li>Origin: Ischial tuberosity </li></ul><ul><li>In...
 
 
 
Move the Knee/Leg <ul><li>What is the collective name of the group of 4 extensors of the knee in the anterior compartment ...
 
Move the Knee/Leg <ul><li>What is the common  insertion  of the group of 4 extensors of the knee in the anterior compartme...
Move the Knee/Leg <ul><li>What is the common  action  of the group of 4 extensors of the knee in the anterior compartment ...
Move the Knee/Leg <ul><li>Of the 4 extensors in the anterior comportment of the thigh, which crosses the hip joint and is ...
Move the Knee/Leg <ul><li>Name:  Rectus femoris </li></ul><ul><li>Origin: Anterior inferior iliac spine. Groove superior t...
Move the Knee/Leg <ul><li>Name:  Vastus lateralis </li></ul><ul><li>Origin: Greater trochanter. Linea aspera </li></ul><ul...
Move the Knee/Leg <ul><li>Name:  Vastus medialis </li></ul><ul><li>Origin: Medial femur. Linea aspera </li></ul><ul><li>In...
Move the Knee/Leg <ul><li>Name:  Vastus intermedius </li></ul><ul><li>Origin: Anterior and lateral femur </li></ul><ul><li...
 
 
Compartments of the Thigh <ul><li>List all of the muscles of the  anterior  compartment of the thigh that cross the knee j...
 
Compartments of the Thigh <ul><li>List all of the muscles of the  medial  compartment of the thigh that cross the knee joi...
 
Compartments of the Thigh <ul><li>List all of the muscles of the  lateral  compartment of the thigh that cross the knee jo...
 
Compartments of the Thigh <ul><li>List all of the muscles of the  posterior  compartment of the thigh that cross the knee ...
 
Leg Muscles <ul><li>What is the anatomical term for the muscles of the leg? </li></ul><ul><ul><li>Crural muscles </li></ul...
Leg Muscles <ul><li>How many compartments lie within the leg? </li></ul><ul><ul><li>3 </li></ul></ul><ul><li>List the comp...
 
Anterior Compartment of the Leg <ul><li>Name:  Extensor digitorum longus </li></ul><ul><li>Origin: Lateral tibial condyle....
 
Anterior Compartment of the Leg <ul><li>Name:  Extensor hallucis longus </li></ul><ul><li>Origin: Anterior fibula. Interos...
 
Anterior Compartment of the Leg <ul><li>Name:  Tibialis anterior </li></ul><ul><li>Origin: Lateral condyle and surface of ...
 
 
 
 
 
 
Lateral Compartment of the Leg <ul><li>Name:  Fibularis longus </li></ul><ul><li>Origin: Head and lateral fibula </li></ul...
Lateral Compartment of the Leg <ul><li>Name:  Fibularis brevis </li></ul><ul><li>Origin: Lateral fibula </li></ul><ul><li>...
 
 
 
Posterior Compartment of the Leg <ul><li>Name:  Gastrocnemius </li></ul><ul><li>Origin: </li></ul><ul><ul><li>Lateral head...
 
Posterior Compartment of the Leg <ul><li>Name:  Soleus </li></ul><ul><li>Origin: Soleal line (posterior tibia). Posterior ...
 
Posterior Compartment of the Leg <ul><li>Name:  Plantaris </li></ul><ul><li>Origin: Lateral supracondylar ridge of femur <...
 
 
Posterior Compartment of the Leg <ul><li>Name:  Flexor digitorum longus </li></ul><ul><li>Origin: Posteriomedial tibia </l...
 
Posterior Compartment of the Leg <ul><li>Name:  Flexor hallucis longus </li></ul><ul><li>Origin: Posterior fibula. Interos...
 
Posterior Compartment of the Leg <ul><li>Name:  Tibialis posterior </li></ul><ul><li>Origin: Interosseus membrane. Posteri...
 
Posterior Compartment of the Leg <ul><li>Name:  Popliteus </li></ul><ul><li>Origin: Lateral femoral condyle </li></ul><ul>...
 
 
 
 
 
 
 
 
 
 
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Muscles 3

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Muscles of the appendicular skeleton in the lower extremity. Includes pictures & descriptions of origins, insertions, and actions.

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Muscles 3

  1. 1. Muscles 3 McKinley and O’Laughlin Chapter 12
  2. 2. Introduction <ul><li>List the 4 compartments of the thigh. </li></ul><ul><ul><li>Anterior - extend knee, flex thigh </li></ul></ul><ul><ul><li>Posterior - flex knee, extend thigh </li></ul></ul><ul><ul><li>Lateral - abduct thigh </li></ul></ul><ul><ul><li>Medial - adduct thigh </li></ul></ul>
  3. 4. Introduction <ul><li>What structure forms the compartments of the thigh? </li></ul><ul><ul><li>Fascia lata </li></ul></ul>
  4. 5. Move the Coxal Joint/Thigh <ul><li>Name: Psoas major </li></ul><ul><li>Origin: Transverse processes of L1-L5 </li></ul><ul><li>Insertion: Lesser trochanter of femur </li></ul><ul><li>Action: Flex hip. Rotate thigh laterally. Flex vertebral column. </li></ul>
  5. 7. Move the Coxal Joint/Thigh <ul><li>Name: Iliacus </li></ul><ul><li>Origin: Iliac fossa </li></ul><ul><li>Insertion: Lesser trochanter of femur </li></ul><ul><li>Action: Flex hip. Rotate thigh laterally. </li></ul>
  6. 9. Introduction <ul><li>By what name are the iliacus and psoas major referred to after they pass deep to the inguinal ligament ? </li></ul><ul><ul><li>Iliopsoas </li></ul></ul>
  7. 11. Move the Coxal Joint/Thigh <ul><li>Name: Sartorius </li></ul><ul><li>Origin: Anterior superior iliac spine </li></ul><ul><li>Insertion: Proximomedial tibia </li></ul><ul><li>Action: Abduct and flex hip. Laterally rotate thigh. Flex knee. </li></ul>
  8. 13. Move the Coxal Joint/Thigh <ul><li>Name: Adductor longus </li></ul><ul><li>Origin: Pubis (below crest) </li></ul><ul><li>Insertion: Linea aspera (middle) </li></ul><ul><li>Action: Adduct and flex hip. Laterally rotate thigh </li></ul>
  9. 16. Move the Coxal Joint/Thigh <ul><li>Name: Adductor brevis </li></ul><ul><li>Origin: Body and inferior ramus of pubis </li></ul><ul><li>Insertion: Linea aspera (proximal) </li></ul><ul><li>Action: Adduct and flex hip. Laterally rotate thigh </li></ul>
  10. 19. Move the Coxal Joint/Thigh <ul><li>Name: Gracilis </li></ul><ul><li>Origin: Body and inferior ramus of pubis </li></ul><ul><li>Insertion: Proximomedial tibia </li></ul><ul><li>Action: Adduct and flex hip. Medially rotate thigh </li></ul>
  11. 21. Move the Coxal Joint/Thigh <ul><li>Name: Pectineus </li></ul><ul><li>Origin: Pectineal line of pubis </li></ul><ul><li>Insertion: Pectineal line of femur </li></ul><ul><li>Action: Adduct and flex hip. Laterally rotate thigh </li></ul>
  12. 24. Move the Coxal Joint/Thigh <ul><li>Name: Adductor magnus </li></ul><ul><li>Origin: Inferior ramus of pubis. Ramus of ischium. Ischial tuberosity. </li></ul><ul><li>Insertion: Linea aspera. Medial epicondyle of femur (adductor tubercle) </li></ul><ul><li>Action: Adduct and flex hip. Laterally rotate thigh </li></ul><ul><ul><li>Hamstring part: extend thigh </li></ul></ul>
  13. 28. Move the Coxal Joint/Thigh <ul><li>Name: Tensor Fasciae Latae </li></ul><ul><li>Origin: Anterior superior iliac spine. Anterior iliac crest. </li></ul><ul><li>Insertion: Lateral tibial condyle via iliotibial tract. </li></ul><ul><li>Action: Abduct hip. Medially rotate thigh. </li></ul>
  14. 30. Move the Coxal Joint/Thigh <ul><li>Name: Gluteus maximus </li></ul><ul><li>Origin: Iliac crest. Dorsal sacrum and coccyx </li></ul><ul><li>Insertion: Gluteal tuberosity (proximal linea aspera). Iliotibial tract. </li></ul><ul><li>Action: Extend hip. Laterally rotate thigh. </li></ul>
  15. 32. Move the Coxal Joint/Thigh <ul><li>Name: Gluteus medius </li></ul><ul><li>Origin: Lateral ilium </li></ul><ul><li>Insertion: Greater trochanter (lateral) </li></ul><ul><li>Action: Abduct hip. Medially rotate thigh. </li></ul>
  16. 34. Move the Coxal Joint/Thigh <ul><li>Name: Gluteus minimus </li></ul><ul><li>Origin: Inferolateral ilium </li></ul><ul><li>Insertion: Greater trochanter (anterior) </li></ul><ul><li>Action: Abduct hip. Medially rotate thigh. </li></ul>
  17. 36. Move the Coxal Joint/Thigh <ul><li>Name: Piriformis </li></ul><ul><li>Origin: Anterior sacrum </li></ul><ul><li>Insertion: Greater trochanter (superior) </li></ul><ul><li>Action: Abduct flexed hip. Laterally rotate extended thigh. </li></ul>
  18. 45. Move the Coxal Joint/Thigh <ul><li>Name: Biceps femoris </li></ul><ul><li>Origin: </li></ul><ul><ul><li>Long head: Ischial tuberosity </li></ul></ul><ul><ul><li>Short head: Distal linea aspera </li></ul></ul><ul><li>Insertion: Fibular head </li></ul><ul><li>Action: Flex knee and laterally rotate leg. Extend thigh. </li></ul>
  19. 48. Move the Coxal Joint/Thigh <ul><li>Name: Semimembranosus </li></ul><ul><li>Origin: Ischial tuberosity </li></ul><ul><li>Insertion: Posterior to medial tibial condyle </li></ul><ul><li>Action: Flex knee and medially rotate leg. Extend thigh. </li></ul>
  20. 50. Move the Coxal Joint/Thigh <ul><li>Name: Semitendinosus </li></ul><ul><li>Origin: Ischial tuberosity </li></ul><ul><li>Insertion: Proximomedial tibia </li></ul><ul><li>Action: Flex knee and medially rotate leg. Extend thigh. </li></ul>
  21. 54. Move the Knee/Leg <ul><li>What is the collective name of the group of 4 extensors of the knee in the anterior compartment of the thigh? </li></ul><ul><ul><li>Quadriceps femoris group </li></ul></ul>
  22. 56. Move the Knee/Leg <ul><li>What is the common insertion of the group of 4 extensors of the knee in the anterior compartment of the thigh? </li></ul><ul><ul><li>Tibial tuberosity </li></ul></ul>
  23. 57. Move the Knee/Leg <ul><li>What is the common action of the group of 4 extensors of the knee in the anterior compartment of the thigh? </li></ul><ul><ul><li>Extend leg at knee </li></ul></ul>
  24. 58. Move the Knee/Leg <ul><li>Of the 4 extensors in the anterior comportment of the thigh, which crosses the hip joint and is a flexor of the hip? </li></ul><ul><ul><li>Rectus femoris </li></ul></ul>
  25. 59. Move the Knee/Leg <ul><li>Name: Rectus femoris </li></ul><ul><li>Origin: Anterior inferior iliac spine. Groove superior to acetabulum </li></ul><ul><li>Insertion: Tibial tuberosity via quadriceps femoris tendon </li></ul><ul><li>Action: Extend knee. Flex thigh </li></ul>
  26. 60. Move the Knee/Leg <ul><li>Name: Vastus lateralis </li></ul><ul><li>Origin: Greater trochanter. Linea aspera </li></ul><ul><li>Insertion: Tibial tuberosity via quadriceps femoris tendon </li></ul><ul><li>Action: Extend knee </li></ul>
  27. 61. Move the Knee/Leg <ul><li>Name: Vastus medialis </li></ul><ul><li>Origin: Medial femur. Linea aspera </li></ul><ul><li>Insertion: Tibial tuberosity via quadriceps femoris tendon </li></ul><ul><li>Action: Extend knee </li></ul>
  28. 62. Move the Knee/Leg <ul><li>Name: Vastus intermedius </li></ul><ul><li>Origin: Anterior and lateral femur </li></ul><ul><li>Insertion: Tibial tuberosity via quadriceps femoris tendon </li></ul><ul><li>Action: Extend knee </li></ul>
  29. 65. Compartments of the Thigh <ul><li>List all of the muscles of the anterior compartment of the thigh that cross the knee joint? </li></ul><ul><ul><li>4 Quads </li></ul></ul><ul><ul><ul><li>Rectus femoris </li></ul></ul></ul><ul><ul><ul><li>Vastus intermedius, lateralis, medialis </li></ul></ul></ul><ul><ul><li>Sartorius </li></ul></ul>
  30. 67. Compartments of the Thigh <ul><li>List all of the muscles of the medial compartment of the thigh that cross the knee joint? </li></ul><ul><ul><li>Gracilis </li></ul></ul>
  31. 69. Compartments of the Thigh <ul><li>List all of the muscles of the lateral compartment of the thigh that cross the knee joint? </li></ul><ul><ul><li>Tensor fasciae latae </li></ul></ul>
  32. 71. Compartments of the Thigh <ul><li>List all of the muscles of the posterior compartment of the thigh that cross the knee joint? </li></ul><ul><ul><li>3 Hamstrings </li></ul></ul><ul><ul><ul><li>Biceps femoris </li></ul></ul></ul><ul><ul><ul><li>Semitendinosus </li></ul></ul></ul><ul><ul><ul><li>Semimembranosus </li></ul></ul></ul>
  33. 73. Leg Muscles <ul><li>What is the anatomical term for the muscles of the leg? </li></ul><ul><ul><li>Crural muscles </li></ul></ul>
  34. 74. Leg Muscles <ul><li>How many compartments lie within the leg? </li></ul><ul><ul><li>3 </li></ul></ul><ul><li>List the compartments that lie within the leg. </li></ul><ul><ul><li>Anterior </li></ul></ul><ul><ul><li>Lateral </li></ul></ul><ul><ul><li>Posterior </li></ul></ul>
  35. 76. Anterior Compartment of the Leg <ul><li>Name: Extensor digitorum longus </li></ul><ul><li>Origin: Lateral tibial condyle. Anterior fibula. Interosseus membrane </li></ul><ul><li>Insertion: Extensor expansions of digits 2-5 </li></ul><ul><li>Action: Extend digits 2-5. Dorsiflex foot </li></ul>
  36. 78. Anterior Compartment of the Leg <ul><li>Name: Extensor hallucis longus </li></ul><ul><li>Origin: Anterior fibula. Interosseus membrane </li></ul><ul><li>Insertion: Dorsal base of distal phalanx of hallux </li></ul><ul><li>Action: Extend digits 1. Dorsiflex foot </li></ul>
  37. 80. Anterior Compartment of the Leg <ul><li>Name: Tibialis anterior </li></ul><ul><li>Origin: Lateral condyle and surface of tibia. Interosseus membrane </li></ul><ul><li>Insertion: (medial and inferior) Medial cuneiform and base of 1st metatarsal </li></ul><ul><li>Action: Dorsiflex and invert foot </li></ul>
  38. 87. Lateral Compartment of the Leg <ul><li>Name: Fibularis longus </li></ul><ul><li>Origin: Head and lateral fibula </li></ul><ul><li>Insertion: (inferior) Medial cuneiform and base of 1st metatarsal </li></ul><ul><li>Action: Plantar flex and evert foot </li></ul>
  39. 88. Lateral Compartment of the Leg <ul><li>Name: Fibularis brevis </li></ul><ul><li>Origin: Lateral fibula </li></ul><ul><li>Insertion: Tuberosity (on base) of 5th metatarsal </li></ul><ul><li>Action: Evert and weakly plantar flex foot </li></ul>
  40. 92. Posterior Compartment of the Leg <ul><li>Name: Gastrocnemius </li></ul><ul><li>Origin: </li></ul><ul><ul><li>Lateral head: Lateral to lateral femoral condyle </li></ul></ul><ul><ul><li>Medial head: Superior to medial femoral condyle </li></ul></ul><ul><li>Insertion: Tuberosity of calcaneus via tendo calcaneus (Achilles tendon) </li></ul><ul><li>Action: Plantar flex foot. Flex knee </li></ul>
  41. 94. Posterior Compartment of the Leg <ul><li>Name: Soleus </li></ul><ul><li>Origin: Soleal line (posterior tibia). Posterior fibula </li></ul><ul><li>Insertion: Tuberosity of calcaneus via tendo calcaneus (Achilles tendon) </li></ul><ul><li>Action: Plantar flex foot </li></ul>
  42. 96. Posterior Compartment of the Leg <ul><li>Name: Plantaris </li></ul><ul><li>Origin: Lateral supracondylar ridge of femur </li></ul><ul><li>Insertion: Tuberosity of calcaneus via tendo calcaneus (Achilles tendon) </li></ul><ul><li>Action: Plantar flex foot. Flex knee </li></ul>
  43. 99. Posterior Compartment of the Leg <ul><li>Name: Flexor digitorum longus </li></ul><ul><li>Origin: Posteriomedial tibia </li></ul><ul><li>Insertion: Inferior distal phalanges 2-5 </li></ul><ul><li>Action: Flex digits 2-5. Plantar flex foot </li></ul>
  44. 101. Posterior Compartment of the Leg <ul><li>Name: Flexor hallucis longus </li></ul><ul><li>Origin: Posterior fibula. Interosseus membrane </li></ul><ul><li>Insertion: Inferior distal phalanx 1 </li></ul><ul><li>Action: Flex digit 1. Plantar flex foot </li></ul>
  45. 103. Posterior Compartment of the Leg <ul><li>Name: Tibialis posterior </li></ul><ul><li>Origin: Interosseus membrane. Posterior tibia and fibula </li></ul><ul><li>Insertion: Inferior surfaces of navicular, cuneiforms, cuboid and bases of metatarsals 2-4 </li></ul><ul><li>Action: Plantar flex and invert foot. Support arches </li></ul>
  46. 105. Posterior Compartment of the Leg <ul><li>Name: Popliteus </li></ul><ul><li>Origin: Lateral femoral condyle </li></ul><ul><li>Insertion: Proximoposterior tibia </li></ul><ul><li>Action: Unlock knee. Flex knee </li></ul>
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