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描述

Origin: Ischial tuberosity

Insertion: Intertrochanteric crest

Artery: Inferior gluteal artery

Nerve: Nerve to quadratus femoris (L4, L5, -S1)

Action: Lateral rotation of thigh

Description:
The Quadratus femoris is a flat, quadrilateral muscle, between the Gemellus inferior and the upper margin of the Adductor magnus; it is separated from the latter by the terminal branches of the medial femoral circumflex vessels. It arises from the upper part of the external border of the tuberosity of the ischium, and is inserted into the upper part of the linea quadrata—that is, the line which extends vertically downward from the intertrochanteric crest. A bursa is often found between the front of this muscle and the lesser trochanter. Sometimes absent.


影像

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