Pectineus

Joe Muscolino

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The pectineus of the adductor group. The adductor longus has been ghosted in.

The Pectineus is a member of the Adductor Group, which is composed of (from lateral to medial) the:

  • Pectineus
  • Adductor longus
  • Gracilis (aka Adductor gracilis)
  • Adductor brevis
  • Adductor magnus

 

ATTACHMENTS:

  • The pectineus attaches from the pubic bone to the pectineal line of the femur

 

ACTIONS:

  • Adducts the thigh at the hip joint.
  • Flexes the thigh at the hip joint.
  • Medially rotates the thigh at the hip joint.
  • Anteriorly tilts the pelvis at the hip joint.
  • Ipsilaterally elevates the pelvis at the hip joint.
  • Ipsilaterally rotates the pelvis at the hip joint.

 

NOTE: The pectineus is a transitional muscle between the anteriorly-located flexor group and the medially-located adductor group. It is included in the “adductor group,” but it is innervated by the femoral nerve, as are the muscles of the flexor group.