Lateral rotator group

The Lateral rotator group (pronunciation: /ˈlatərəl roʊˈteɪtər ɡruːp/) is a group of muscles in the hip that are responsible for the lateral rotation of the femur in the hip joint. The muscles in this group include the Piriformis, Superior gemellus, Obturator internus, Inferior gemellus, and Quadratus femoris.

Etymology

The term "lateral rotator group" is derived from the Latin words 'latus' meaning 'side', 'rotare' meaning 'to rotate', and 'group' from the Old French 'groupe'. The name describes the function and location of these muscles, which are situated on the side of the hip and function to rotate the femur laterally.

Function

The primary function of the lateral rotator group is to laterally rotate the femur at the Hip joint. This action is crucial for movements such as walking, running, and jumping. In addition to lateral rotation, these muscles also assist in abduction and adduction of the hip.

Related Terms

Piriformis: One of the six muscles in the lateral rotator group. It is located in the gluteal region of the lower limb.
Superior gemellus: A small muscle which is one of the six muscles in the lateral rotator group.
Obturator internus: A muscle in the lateral rotator group that helps rotate the hip.
Inferior gemellus: A muscle in the lateral rotator group that helps rotate the hip.
Quadratus femoris: A flat, quadrilateral skeletal muscle in the lateral rotator group.

External links

Medical encyclopedia article on Lateral rotator group
Wikipedia's article - Lateral rotator group

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Lateral rotator group