Gluteus Maximus muscle often acts when force is necessary (rapid movement or movement against resistance). that's why its paralysis doesn't affect normal walking (while walking, its contraction only occurs when the heel touches the gorund, til the foot is…

Gluteus minimus & medius They have the same nerve supply (superior gluteal nerve), and the same arterial supply (superior gluteal artery). their action is basically abduction & lateral rotation

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Tensor fasciae latae It lies laterally to the thigh and it attaches to the iliotibial tract. Although it shares a common attachment, innervation, and blood supply with other extensor muscles (it's served by the superior gluteal neurovascular bundle), but…

piriformis muscle is named for its pear-like shape

Obturator int. + superior Gemellus + inferior Gemellus = triceps coxae

These muscles are considered to be one tricipital (three-headed) muscle because they are incapable of independent action, and they share a common tendon.

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بما انه ال 2 heads of gastrocnemius بالاضافة لعضلة الsoleus... كلهن يشتركن بخط فعل واحد (وتر tendon واحد) اللي هو وتر أخيل Achilles tendon (tendo calcaneus) لهذا مرات يسموهن triceps surae