Anatomy Chapter 19

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Author:
LaizyDaizy79
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70935
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Anatomy Chapter 19
Updated:
2011-04-11 22:52:02
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Human Anatomy
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Muscles, Part 3
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  1. List the four compartments of the thigh.
    anterior, lateral, posterior, & medial
  2. What structure forms the compartments of the thigh?
    fascia lata - the deep fascia
  3. Origin- Transverse processes of L1-L5
    Insertion- Lesser trochanter of femur
    Action- Flexes hip; Rotates thigh laterally; Flexes vertebral column
    psoas major
  4. Origin- Iliac fossa
    Insertion- Lesser trochanter of femur
    Action- Flexes hip; Rotates thigh laterally
    iliacus
  5. By what name are the iliacus and psoas major referred to after they pass deep to the inguinal ligament?
    iliopsoas
  6. Origin- Anterior superior iliac spine
    Insertion- Superior part of the medial surface of tibia
    Action- Flexes, abducts, and laterally rotates thigh at hip joint and flexes leg at knee joint.
    (Known as tailor's muscle)
    sartorius
  7. Origin- Pubis - below pubic crest
    Insertion- Middle third of linea aspera of the femur
    Action- Adducts, flexes, and laterally rotates the thigh
    adductor longus
  8. Origin- Body and inferior ramus of the pubis
    Insertion- Proximal part of linea aspera
    Action- Adducts, flexes, and laterally rotates thigh
    adductor brevis
  9. Origin- Body and inferior ramus of pubis
    Insertion- Proximal medial surface of tibia
    Action- Adducts thigh; Flexes and rotates leg medially at knee
    gracilis
  10. Origin- Pectineal line of the pubis
    Insertion- Pectineal line of the femur
    Action- Adducts, flexes, and laterally rotates thigh
    pectineus
  11. Origin- Inferior ramus of pubis, ramus of ischium, and ischial tuberosity
    Insertion- Linea aspera and medial epicondyle of femur
    Action- Adducts, flexes, and laterally rotates thigh
    adductor magnus
  12. Origin- Anterior superior iliac spine and anterior part of external lip of iliac crest
    Insertion- Anterolateral aspect of lateral tibial condyle via iliotibial tract
    Action- Abducts thigh
    tensor fasciae latae
  13. Origin- Iliac crest, dorsal surface of sacrum and coccyx
    Insertion- Gluteal tuberosity and ilitibial tract
    Action- Extends hip; Rotates thigh laterally
    gluteus maximus
  14. Origin- Upper half of lateral surface of the ilium
    Insertion- Lateral surface of greater trochanter
    Action- Abducts hip; Rotates thigh medially
    gluteus medius
  15. Origin- Lower half of lateral surface of ilium
    Insertion- Anterior surface of greater trochanter
    Action- Abducts hip; Rotates thigh medially
    gluteus minimus
  16. Origin- Anterior of the sacrum
    Insertion- Superior border of greater trochanter
    Action- Laterally rotates extended hip and abducts flexed thigh
    piriformis
  17. Origin- Long Head: Ischial tuberosity. Short Head: Distal part of linea aspera of femur
    Insertion- Lateral side of head of fibula
    Action- Flexes leg and rotates it laterally; Extends thigh
    biceps femoris
  18. Origin- Ischial tuberosity
    Insertion- Posterior part of medial condyle of tibia
    Action- Flexes leg at knee; Extends and medially rotates thigh at hip
    semitendinosus
  19. Origin- Ischial tuberosity
    Insertion- Proximal portion of medial surface of body of tibia
    Action- Flexes leg at knee; Extends and medially rotates thigh at hip
    semimembranosus
  20. What is the collective name of the group of four extensors of the knee in the anterior compartment of the thigh?
    quadriceps femoris
  21. What is the common insertion of the group of four extensors of the knee in the anterior compartment of the thigh?
    tibial tuberosity via the patellar tendon
  22. What is the common action of the group of four extensors of the knee in the anterior compartment of the thigh?
    extension of the knee
  23. Of the four extensors in the anterior compartment of the thigh, which crosses the hip joint and is a flexor of the hip?
    rectus femoris
  24. Origin- Anterior inferior iliac spine and groove superior to acetabulum
    Insertion- Patella by common tendond which continues as patellar ligament to tibial tuberosity
    Action- Flexion of the hip; Extension of the knee
    rectus femoris
  25. Origin- Greater trochanter and linea aspera of femur
    Insertion- Patella by common tendon which continues as patellar ligament to tibial tuberosity
    Action- Extension of the knee
    vastus lateralis
  26. Origin- Medial surface and linea aspera of femur
    Insertion- Patella by common tendon which continues as patellar ligament to tibial tuberosity
    Action- Extension of the knee
    vastus medialis
  27. Origin- Anterior and lateral surfaces of femur
    Insertion- Patella by common tendon which continues as patellar ligament to tibial tuberosity
    Action- Extension of the knee
    vastus intermedius
  28. List all of the muscles of the anterior compartment of the thigh that cross the knee joint.
    sartorius, rectus femoris, vastus lateralis, vastus intermedius, & vastus medialis
  29. List all the muscles of the medial compartment of the thigh that cross the knee joint.
    gracilis
  30. List all the muscles of the lateral compartment of the thigh that cross the knee joint.
    tensor fasciae latae
  31. List all of the muscles of the posterior compartment of the thigh that cross the knee joint.
    biceps femoris, semitendinosus, & semimembranosus
  32. What is an anatomical term for the muscles of the leg?
    crural muscles
  33. How many compartments lie within the leg?
    three
  34. List the compartments that lie within the leg.
    anterior, lateral, & posterior
  35. Origin- Lateral condyle of tibia, superior 3/4 of anterior surface of fibula and interosseous membrane
    Insertion- Extensor expansions of digits 2-5
    Action- Extends digits 2-5 and dorsiflexes foot
    extensor digitorum longus
  36. Origin- Middle part of anterior surface of fibula and interosseus membrane
    Insertion- Dorsal aspect of base of distal phalanx of digit 1 (hallux)
    Action- Extends great toe and assists dorsiflexion of foot
    extensor hallucis longus
  37. Origin- Lateral condyle and superior half of lateral surface of tibia
    Insertion- Medial and inferior surfaces of medial cuneiform bone and base of first metatarsal bone
    Action- Dorsiflexion of ankle and inversion of foot
    tibialis anterior
  38. Origin- Head and superior 2/3 of lateral surface of fibula
    Insertion- Inferior aspects of medial cuneiform and base of first metatarsal
    Action- Plantar flexes and everts foot
    fibularis longus
  39. Origin- Inferior 2/3 of lateral surface of fibula
    Insertion- Dorsal surface of tuberosity of fifth metatarsal
    Action- Everts foot and weakly plantar flexes foot
    fibularis brevis
  40. Origin- Lateral Head: Lateral aspect of lateral condyle of femur. Medial Head: Popliteal surface of femur, superior fo medial condyle
    Insertion- Posterior surface of tuberosity of calcaneus via tendo calcaneus (Achilles tendon)
    Action- Plantar flexes foot; raises heel during walking, and flexes knee
    gastrocnemius
  41. Origin- Posterior aspect of fibula and tibia
    Insertion- Posterior surface tuberosity of calcaneus via tendo calcaneus (Achilles tendon)
    Action- Plantar flexes foot
    soleus
  42. Origin- Lateral supracondylar ridge of femur
    Insertion- Posterior surface tuberosity of calcaneus via tendo calcaneus (Achilles tendon)
    Action- Weakly assists gastrocnemius in plantar flexing foot and flexing knee joint
    plantaris
  43. Origin- Medial part of posterior surface of tibia, inferior to soleal line
    Insertion- Inferior surface of distal phalanges of digits 2-5
    Action- Flexes digits 2-5 and plantar flexes foot
    flexor digitorum longus
  44. Origin- Inferior 2/3 of posterior surface of fibula and inferior part of interosseous membrane
    Insertion- Inferior surface of base of distal phalanx of great tow
    Action- Flexes first digit at all joints and plantar flexes foot
    flexor hallucis longus
  45. Origin- Interosseous membrane, posterior surface of tibia inferior to soleal line and posterior surface of fibula
    Insertion- Inferior surfaces of navicular, cuneiforms, cuboid, and bases of metatarsals 2, 3, and 4
    Action- Plantar flexes and inverts foot; Supports arches
    tibials posterior
  46. Origin- Lateral condyle of femur
    Insertion- Upper posterior aspect of tibia
    Action- Weakly flexes leg and unlocks it
    popliteus
  47. What is the insertion of the gluteus maximus?
    gluteal tuberosity & iliotibial tract
  48. What is the common origin of all the hamstrings?
    ischial tuberosity
  49. What is the most superficial muscle of the calf?
    gastrocnemius
  50. Which of the adductors of the thigh crosses the knee joint?
    gracilis

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