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Questions and Answers
Gluteus maximus extends and laterally rotates the hip joint and is innervated by the __________ nerve.
gluteal
Gluteus medius abducts the thigh at the hip joint and is innervated by the superior __________ nerve.
gluteal
Tensor fasciae latae assists gluteus maximus in extending the knee joint and is innervated by the superior __________ nerve.
gluteal
Piriformis is a lateral rotator of the thigh at the hip joint and is innervated by the __________ plexus.
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Gemellus superior is a lateral rotator of the thigh at the hip joint and is innervated by the __________ plexus.
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Gemellus inferior is a lateral rotator of the thigh at the hip joint and is innervated by the __________ plexus.
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Study Notes
Gluteal Region Muscles
- Gluteus Maximus: • Originates from the outer surface of ilium, sacrum, coccyx, and gluteal tuberosity of femur • Inserts into the iliotibial tract and gluteal tuberosity of femur • Supplied by the gluteal nerve (L5, S1, 2) • Actions: extends and laterally rotates the hip joint
Gluteus Medius and Minimus
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Gluteus Medius: • Originates from the outer surface of ilium • Inserts into the lateral surface of the greater trochanter of the femur • Supplied by the superior gluteal nerve (L5, S1) • Actions: abducts the thigh at the hip joint and tilts the pelvis when walking
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Gluteus Minimus: • Originates from the outer surface of ilium • Inserts into the anterior surface of the greater trochanter of the femur • Supplied by the superior gluteal nerve (L5, S1) • Actions: abducts the thigh at the hip joint and tilts the pelvis when walking
Deep Gluteal Muscles
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Tensor Fasciae Latae: • Originates from the iliac crest • Inserts into the iliotibial tract • Supplied by the superior gluteal nerve (L4, 5) • Actions: assists gluteus maximus in extending the knee joint
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Piriformis: • Originates from the anterior surface of the sacrum • Inserts into the upper border of the greater trochanter of the femur • Supplied by the sacral plexus (L5, S1) • Actions: lateral rotator of the thigh at the hip joint
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Gemellus Superior and Inferior: • Originates from the spine of the ischium and the obturator membrane • Inserts into the upper border of the greater trochanter of the femur • Supplied by the sacral plexus (L5, S1) • Actions: lateral rotator of the thigh at the hip joint
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Description
Test your knowledge on the muscles of the gluteal region, including their origins, insertions, nerve supply, actions, and more. Identify and understand the key characteristics of gluteus maximus, gluteus medius, and gluteus minimus.
