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Anatomy; Muscles > Knee Muscles > Flashcards

Knee Muscles Flashcards

To know all the muscles in the knee and their origins, insertions, and actions.

1
Q

What are all the Knee Extension muscles?

A

a. Rectus Femoris
b. Vastus Lateralis
c. Vastus Medialis
d. Vastus Intermedialis

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2
Q

What are all the Knee Flexion muscles?

A

a. Semitendonosis
b. Semimembronosis
c. Bicep Femoris
d. Popliteus
e. Gracilis
f. Sartorious

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3
Q

What are the plantaflexion muslces?

A

Gastrocnemius

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4
Q

Rectus Femoris
Origin? (2)
Insertion? (2)
Action? (1)

A
  1. a. Anterior Inferior Iliac Spine (AIIS)
  2. b. Illium superior to the acetabulum
  3. a. Base of Patella
  4. b. Tibial tuberosity by the patella tendon
  5. Knee extension
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5
Q

Vastus Lateralis
Origin? (2)
Insertion? (2)
Action? (1)

A
  1. a. Greater trochanter
  2. b. Lateral lip of linea aspera of the femur
  3. a. Base of the patella
  4. b. tibial tuerosity by the patella tendon
  5. Knee Extension
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6
Q

Vastus Medialis
Origin? (2)
Insertion? (2)
Action? (1)

A
  1. a. Intertrochantric line
  2. b. Medial lip of linea aspera of femur
  3. a. Patella
  4. b. Tibial tuberosity via the patella tendon
  5. Knee extension
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7
Q

Vastus Intermedialis
Origin? (2)
Insertion? (2)
Action? (1)

A
  1. a. Anterior surface of shaft of femur
  2. b. Lateral surface of shaft of femur
  3. a. Patella
  4. b. Tibial tuberosity via the patella tendon
  5. Knee extension
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8
Q

Semitendonosis
Origin? (1)
Insertion? (1)
Action? (1)

A
  1. Ishial tuberosity
  2. Medial surface of superious part of the tibia
  3. Knee Flexion
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9
Q

Semimembronosis
Origin? (1)
Insertion? (1)
Action? (1)

A
  1. Ishial tuberosity
  2. Medial condyle of the tibia
  3. knee flexion
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10
Q

Bicep Femoris
Origin? (3)
Insertion? (1)
Action? (1)

A
  1. a. (Long head): Ishial tuberosity
  2. b. (Short head): Linea aspera
  3. c. (Short head): Lateral supracondylar line of femur
  4. Lateral side of head of fibular
  5. Knee flexion
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11
Q

Popliteus
Origin? (2)
Insertion? (1)
Action? (1)

A
  1. a. Lateral surface of lateral condyle of femur
  2. b. Lateral meniscus
  3. Posterior surface of tibia, superior to soleal line
  4. Knee flexion (weakly)
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Anatomy; Muscles (2 decks)

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