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Questions and Answers
Which nerve innervates the Tibialis Anterior muscle?
What is the primary action of the Gastrocnemius muscle?
Which muscle is responsible for toe flexion of the hallux?
Which of the following muscles has an origin at the Ischial Tuberosity?
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What is the primary action of the Fibularis Brevis muscle?
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Which muscle is NOT primarily responsible for plantarflexion?
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Which nerve innervates the muscles located in the lateral leg?
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What action does the Popliteus muscle perform?
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Which muscle is primarily responsible for hip flexion and has its origin at the iliac fossa?
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Which nerve innervates the vastus lateralis muscle?
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Identify the muscle that acts as the main hip extensor.
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Which of the following muscles is primarily involved in knee extension?
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Which muscle originates from the ASIS and contributes to hip flexion?
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Which of the following muscles is involved in hip adduction?
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What is the primary movement facilitated by the tensor fascia latae?
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Which muscle has an origin at the inferior pubic ramus and contributes to hip adduction?
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Study Notes
Muscles of the Hip
- Iliacus and Psoas muscles work together as the iliopsoas, flexing the hip.
- Sartorius is the longest muscle in the body, acting as a flexor, abductor, and lateral rotator of the hip.
- Tensor Fascia Latae assists with hip abduction.
- Rectus Femoris is part of the quadriceps group and is the only muscle responsible for hip flexion amongst them, the others are knee extensors.
- Gluteus Maximus is the large muscle responsible for hip extension.
- Gluteus Medius and Gluteus Minimus muscles are abductors of the hip, contributing to pelvic stability and balance during gait.
- Pectineus, Adductor Longus, Adductor Brevis, Adductor Magnus, and Gracilis muscles are all adductors of the hip.
Muscles of the Thigh
- Quadriceps group includes the Rectus Femoris, Vastus Lateralis, Vastus Medialis, and Vastus Intermedius muscles, all responsible for knee extension.
- Hamstring group includes Biceps Femoris, Semitendinosus, and Semimembranosus muscles, all responsible for hip extension and knee flexion.
Muscles of the Leg
- Tibialis Anterior is the major dorsiflexor of the foot, also inverting the foot.
- Extensor Digitorum Longus and Extensor Hallucis Longus are both responsible for toe extension.
- Fibularis Longus and Fibularis Brevis are both responsible for foot eversion.
- Gastrocnemius and Soleus are both plantar flexors of the foot.
- Plantaris is a small muscle that also assists with plantar flexion.
- Tibialis Posterior is responsible for plantar flexion and inversion of the foot.
- Flexor Digitorum Longus and Flexor Hallucis Longus are responsible for toe flexion.
- Popliteus unlocks the knee by laterally rotating the femur.
Muscles of the Foot
- The 1st layer of foot muscles all are innervated by the Tibial Nerve.
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Description
Explore the major muscles involved in the hip and thigh regions, including their functions and anatomical significance. This quiz covers the iliopsoas, quadriceps, hamstrings, and various hip adductors and abductors. Test your knowledge on muscle actions and relationships to movement.
