| piriformis | <anatomy, muscle> Origin, margins of pelvic sacral foramina and greater sciatic notch of ilium; insertion, upper border of greater trochanter; action, rotates thigh laterally; nerve supply, nerve to piriformis (sciatic plexus). Synonym: musculus piriformis, musculus pyriformis, piriform muscle. (05 Mar 2000) |
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| apertura piriformis | The anterior nasal opening in the skull. Synonym: apertura piriformis, piriform opening. (05 Mar 2000) |
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| bursa musculi piriformis | <anatomy> A small bursa located between the tendons of the piriformis and superior gemellus and the femur. Synonym: bursa musculi piriformis. (05 Mar 2000) |
| bursa of the piriformis muscle | <anatomy> A small bursa located between the tendons of the piriformis and superior gemellus and the femur. Synonym: bursa musculi piriformis. (05 Mar 2000) |
| recessus piriformis | A recess in the anterolateral wall of the nasopharynx on each side of the vestible of the larynx separated from it by the aryepiglottic folds. Synonym: recessus piriformis, piriform recess, piriform sinus. (05 Mar 2000) |
| musculus piriformis | <anatomy, muscle> Origin, margins of pelvic sacral foramina and greater sciatic notch of ilium; insertion, upper border of greater trochanter; action, rotates thigh laterally; nerve supply, nerve to piriformis (sciatic plexus). Synonym: musculus piriformis, musculus pyriformis, piriform muscle. (05 Mar 2000) |
| piriformis syndrome |
A clinical diagnosis based on complaints of pain and abnormal sensations in the buttocks region with extension into the hips and posterior thigh as would be seen in sciatica.
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| piriformis syndrome |
A condition marked by pain in the hip and buttock that radiates up into the lower back and down the leg. In women, the pain may occur during sexual intercourse. This is caused by entrapment of the sciatic nerve as it passes t
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