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Corrective Exercise Specialists > Muscles > Flashcards

Muscles Flashcards

1
Q

Anterior Tibialis

A

ORIGIN

Lateral condyle and proximal two-thirds of the lateral surface of the tibia
INSERTION

Medial and plantar aspects of the medial cuneiform and the base of the first metatarsal
ISOLATED FUNCTION

Concentric Action

Ankle dorsiflexion and inversion
INTEGRATED FUNCTION

Eccentric Action

Ankle plantar flexion and eversion
Isometric Action

Stabilizes the arch of the foot
INNERVATION

Deep fibular (peroneal) nerve

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2
Q

Posterior Tibialis

A

ORIGIN

Proximal two-thirds of posterior surface of the tibia and fibula
INSERTION

Every tarsal bone (navicular, cuneiform, and cuboid) but the talus plus the bases of the second through the fourth metatarsal bones – the main insertion is on the navicular tuberosity and the medial cuneiform bone.
ISOLATED FUNCTION

Concentric Action

Ankle plantar flexion and inversion of the foot
INTEGRATED FUNCTION

Eccentric Action

Ankle dorsiflexion and eversion
Isometric Action

Stabilizes the arch of the foot
INNERVATION

Tibial nerve

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3
Q

Soleus

A

ORIGIN

Posterior surface of the fibular head and proximal one-third of its shaft and from the posterior side of the tibia
INSERTION

Calcaneus via the Achilles tendon
ISOLATED FUNCTION

Concentric Action

Accelerates plantar flexion
INTEGRATED FUNCTION

Eccentric Action

Decelerates ankle dorsiflexion
Isometric Action

Stabilizes the foot and ankle complex
INNERVATION

Tibial nerve
Gastrocnemius

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4
Q

Gastrocnemius

A

ORIGIN

Posterior aspect of the lateral and medial femoral condyles
INSERTION

Calcaneus via the Achilles tendon
ISOLATED FUNCTION

Concentric Action

Accelerates plantar flexion
INTEGRATED FUNCTION

Eccentric Action

Decelerates ankle dorsiflexion
Isometric Action

Isometrically stabilizes the foot and ankle complex
INNERVATION

Tibial nerve

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5
Q

Peroneus ( Fibularis Longus)

A

ORIGIN

Lateral condyle of tibia, head, and proximal two-thirds of the lateral surface of the fibula
INSERTION

Lateral surface of the medial cuneiform and lateral side of the base of the first metatarsal
ISOLATED FUNCTION

Concentric Action

Plantar flexes and everts the foot
INTEGRATED FUNCTION

Eccentric Action

Decelerates ankle dorsiflexion and inversion
Isometric Action

Stabilizes the foot and ankle complex
INNERVATION

Superficial fibular (peroneal) nerve

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6
Q

Bicep Femoris - Long Head

A

ORIGIN

Ischial tuberosity of the pelvis, part of the sacrotuberous ligament
INSERTION

Head of the fibula
ISOLATED FUNCTION

Concentric Action

Accelerates knee flexion, hip extension, and tibial external rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee extension, hip flexion, and tibial internal rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION

Tibial nerve

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7
Q

Bicep Femoris - Short Head

A

ORIGIN

Lower one-third of the posterior aspect of the femur
INSERTION

Head of the fibula
ISOLATED FUNCTION

Concentric Action

Accelerates knee flexion and tibial external rotation

INTEGRATED FUNCTION

Eccentric Action

Decelerates knee extension and tibial internal rotation
Isometric Action

Stabilizes the knee
INNERVATION

Common fibular (peroneal) nerve

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8
Q

Semimembranosus

A

ORIGIN

Ischial tuberosity of the pelvis
INSERTION

Posterior aspect of the medial tibial condyle of the tibia
ISOLATED FUNCTION

Concentric Action

Accelerates knee flexion, hip extension, and tibial internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee extension, hip flexion, and tibial external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION

Tibial nerve

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9
Q

Semitendinosus

A

ORIGIN

Ischial tuberosity of the pelvis and part of the sacrotuberous ligament
INSERTION

Proximal aspect of the medial tibial condyle of the tibia (pes anserine)
ISOLATED FUNCTION

Concentric Action

Accelerates knee flexion, hip extension, and tibial internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee extension, hip flexion, and tibial external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION

Tibial nerve

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10
Q

Vastus Lateralis

A

ORIGIN

Anterior and inferior border of the greater trochanter, lateral region of the gluteal tuberosity, and lateral lip of the linea aspera of the femur
INSERTION

Base of patella and tibial tuberosity of the tibia
ISOLATED FUNCTION

Concentric Action

Accelerates knee extension
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee flexion
Isometric Action

Stabilizes the knee
INNERVATION

Femoral nerve

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11
Q

Vastus Medialis

A

RIGIN

Lower region of intertrochanteric line, medial lip of linea aspera, and proximal medial supracondylar line of the femur
INSERTION

Base of patella and tibial tuberosity of the tibia
ISOLATED FUNCTION

Concentric Action

Accelerates knee extension
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee flexion
Isometric Action

Stabilizes the knee
INNERVATION

Femoral nerve

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12
Q

Vastus Intermedius

A

ORIGIN

Anterior-lateral regions of the upper two-thirds of the femur
INSERTION

Base of patella and tibial tuberosity of the tibia
ISOLATED FUNCTION

Concentric Action

Accelerates knee extension
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee flexion
Isometric Action

Stabilizes the knee
INNERVATION

Femoral nerve

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13
Q

Rectus Femoris

A

ORIGIN

Anterior-inferior iliac spine of the pelvis
INSERTION

Base of patella and tibial tuberosity of the tibia
ISOLATED FUNCTION

Concentric Action

Accelerates knee extension and hip flexion
INTEGRATED FUNCTION

Eccentric Action

Decelerates knee flexion and hip extension
Isometric Action

Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION

Femoral nerve

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14
Q

Adductor Longus

A

ORIGIN

Anterior surface of the inferior pubic ramus of the pelvis
INSERTION

Proximal one-third of the linea aspera of the femur
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, extension, and external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex
INNERVATION

Obturator nerve

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15
Q

Adductor Magnus - Anterior Fibers

A

ORIGIN

Ischial ramus of the pelvis
INSERTION

Linea aspera of the femur
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, extension, and external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex
INNERVATION

Obturator nerve

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16
Q

Adductor Magnus - Posterior Fibers

A

ORIGIN

Ischial tuberosity of the pelvis
INSERTION

Adductor tubercle on femur
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, extension, and external rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, flexion, and internal rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex
INNERVATION

Sciatic nerve

17
Q

Adductor Brevis

A

ORIGIN

Anterior surface of the inferior pubic ramus of the pelvis
INSERTION

Proximal one-third of the linea aspera of the femur
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, extension, and external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex
INNERVATION

Obturator nerve

18
Q

Gracilis

A

ORIGIN

Anterior aspect of lower body of pubis
INSERTION

Proximal medial surface of the tibia (pes anserine)
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, flexion, and internal rotation and assists in tibial internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, extension, and external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex and knee
INNERVATION

Obturator nerve

19
Q

Pectineus

A

ORIGIN

Pectineal line on the superior pubic ramus of the pelvis
INSERTION

Pectineal line on the posterior surface of the upper femur
ISOLATED FUNCTION

Concentric Action

Accelerates hip adduction, flexion, and internal rotation
INTEGRATED FUNCTION

Eccentric Action

Decelerates hip abduction, extension, and external rotation
Isometric Action

Stabilizes the lumbo-pelvic-hip complex
INNERVATION

Obturator nerve

Corrective Exercise Specialists (1 decks)

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