Podcast
Questions and Answers
What is the primary function of the obturator externus muscle?
Where does the long head of the biceps femoris muscle originate?
Which muscle is responsible for flexion of the leg and lateral rotation?
What is the primary innervation for the semimembranosus muscle?
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Which of the following muscles does NOT contribute to the pes anserinus insertion?
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Which muscle is responsible for dorsal flexion of the foot?
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What is the function of the flexor digitorum longus muscle?
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Which compartment of the leg contains the gastrocnemius muscle?
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What is the primary function of the gluteus medius muscle?
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Which muscle is innervated by the inferior gluteal nerve?
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Where does the gluteus minimus muscle originate?
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What is the function of the piriformis muscle when the thigh is extended?
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Which nerve supplies the obturator internus muscle?
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What is unique about the sartorius muscle?
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Which muscles are primarily responsible for stabilizing the hip and pelvis in the coronal plane?
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Which of the following is supplied by the sacral plexus?
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What is the primary function of the femoralis muscle?
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Which muscle in the quadriceps femoris group is responsible for flexion of thigh and extension of leg?
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What is the nerve supply for the quadriceps femoris?
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Which structure is not found in the femoral triangle?
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What is the role of the adductor longus muscle?
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Which of the following statements about the vastus medialis is true?
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Which muscle is primarily responsible for lateral rotation of the thigh?
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Which of the following muscles is involved in adduction of the thigh?
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Study Notes
Obturator Externus Muscle
- The primary function of the obturator externus muscle is lateral rotation of the thigh.
Long Head of Biceps Femoris Muscle
- The long head of the biceps femoris muscle originates from the ischial tuberosity.
Flexion and Lateral Rotation
- The biceps femoris muscle is responsible for flexion of the leg and lateral rotation.
Semimembranosus Muscle Innervation
- The semimembranosus muscle is primarily innervated by the tibial nerve.
Pes Anserinus Insertion
- The sartorius, gracilis, and semitendinosus muscles contribute to the pes anserinus insertion. The semimembranosus muscle does not contribute.
Dorsal Flexion of the Foot
- The tibialis anterior muscle is responsible for dorsal flexion of the foot.
Flexor Digitorum Longus Muscle Function
- The flexor digitorum longus muscle flexes the four lateral toes.
Gastrocnemius Muscle Compartment
- The gastrocnemius muscle is located in the superficial posterior compartment of the leg.
Gluteus Medius Muscle Function
- The primary function of the gluteus medius muscle is abduction and medial rotation of the thigh, as well as stabilizing the pelvis during gait.
Inferior Gluteal Nerve Innervation
- The gluteus maximus muscle is innervated by the inferior gluteal nerve.
Gluteus Minimus Muscle Origin
- The gluteus minimus muscle originates from the external surface of the ilium.
Piriformis Muscle Function with Extended Thigh
- When the thigh is extended, the piriformis muscle externally rotates the thigh.
Obturator Internus Muscle Nerve Supply
- The obturator internus muscle is supplied by the nerve to obturator internus.
Sartorius Muscle Uniqueness
- The sartorius muscle is the longest muscle in the body.
Hip and Pelvis Stabilization
- The gluteus medius and minimus muscles are primarily responsible for stabilizing the hip and pelvis in the coronal plane.
Sacral Plexus Supplied Structures
- Structures supplied by the sacral plexus include the gluteal muscles, hamstrings, and sciatic nerve.
Femoralis Muscle Function
- The primary function of the femoralis muscle is hip flexion.
Flexion and Extension Muscle
- The rectus femoris muscle in the quadriceps femoris group is responsible for flexion of the thigh and extension of the leg.
Quadriceps Femoris Nerve Supply
- The quadriceps femoris is supplied by the femoral nerve.
Femoral Triangle Structure Not Found
- The saphenous vein is not found in the femoral triangle.
Adductor Longus Muscle Role
- The adductor longus muscle adducts and flexes the thigh.
Vastus Medialis True Statement
- The vastus medialis is an important muscle for stabilizing the patella.
Lateral Rotation of Thigh
- The gluteus maximus muscle is primarily responsible for lateral rotation of the thigh.
Thigh Adduction Muscles
- The following muscles are involved in adduction of the thigh: adductor longus, adductor brevis, adductor magnus, gracilis.
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Description
Test your knowledge on the anatomy of the gluteal region, including the fascia and major gluteal muscles. This quiz covers details such as origins, insertions, functions, and innervation of the gluteus maximus, medius, and minimus. Perfect for anatomy students and fitness professionals alike!
