Term
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Definition
Smallest muscle of gluteal group
Origin- External surface of ilium between the anterior and inferior gluteal lines
Insertion- Anterior surface of greater trochanter of femur
Innervation- Superior gluteal nerve (L5, S1)
Action- Abducts and medially rotate thigh, keeps pelvis level when opposite leg is raised |
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Term
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Definition
GM, GM, TFL
Gluteus Medius, Gluteus Minimus, Tensor Fascia Latae |
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Term
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Definition
Origin- External surface of ilium between anterior and posterior gluteal lines
Insertion- Lateral surface of greater trochanter of femur
Innervation- Superior Gluteal nerve (L5, S1)
Action- Abducts and medially rotates the thigh, keeps pelvis level when opposite leg is raised |
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Term
Actions of gluteus medius and minimus while walking.
Step One |
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Definition
| 1. When the weight is on both feet, the pelvis is evenly supported and does not sag. |
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Term
Actions of gluteus medius and minimus while walking.
Step two |
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Definition
| 2. When the weight is borne by one foot, the muscles on the same side hold the pelvis so that the pelvis will not sag on the side of the raised limb. |
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Term
Actions of gluteus medius and minimus while walking.
step three |
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Definition
| 3. When the gluteus medius and minimus are inactive owing to injury of the superior gluteal nerve, the supporting and steadying action of these muscles is lost and the pelvis falls on the side of the raised limb. (Trendelenburg's sign) |
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Term
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Definition
Origin- Iliac Crest
Insertion- Iliotibial Tract
Innervation- Superior Gluteal nerve
Action- abducts, medially rotates and flexes thigh. Helps to keep knee extended. Steadies trunk on thigh. |
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Term
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Definition
| A continuous sheet of dense fibrous tissue that surrounds all the muscles of the thigh. |
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Term
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Definition
| A thickening along the outer aspect of the thigh. It extends all the way from the ilium down to the tibia. It acts as the tendon of insertion for two muscles, gluteus maximus and tensor fascia latae. |
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Term
| What two muscles insert into the iliotibial tract? |
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Definition
| gluteus maximus, and the tensor fascia latae. |
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Term
| Where do the gluteus minimus and medius attach? |
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Definition
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Term
| What is the smallest muscle of the abductor group? |
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Definition
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Term
| What abductor muscle originates from the external surface of the ilium between anterior and posterior gluteal lines? |
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Definition
| gluteus medius and minimus |
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Term
| Which abductor inserts into the anterior portion of greater trochanter? |
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Definition
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Term
| Which abductor inserts into the lateral surface of the greater trochanter? |
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Definition
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Term
| What abductor originates from the iliac crest? |
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Definition
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Term
| What nerve supplies the abductors? |
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Definition
| superior gluteal nerve except for gluteus maximus. it is innervated by the inferior gluteal nerve |
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