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Pectineus Anatomy: Origin, Insertion, Action, Innervation

Pectineus Anatomy Study

Pectineus Anatomy Origin: Pectineal line of the pubis and a narrow area of the superior pubic ramus below it.
Insertion: A vertical line from the lesser trochanter to the linea aspera
Action: Assists with flexion of the thigh at the hip, assists with adduction of the thigh at the hip
Innervation: Anterior division of the femoral nerve  (L2 – 3)
Blood Supply: Branches from the internal iliac and profunda femoris arteries

Synergist: Iliopsoas, Tensor Fasciae Latae, Adductor Brevis, Sartorius

Antagonist: Gluteus Maximus, Adductor Magnus (posterior part)

 

Primary Action of Pectineus:

  • The pectineus is not a prime mover and does not have a primary action

Secondary Actions of the Pectineus:

1. Assists with flexion of the thigh at the hip

    • Agonists: Psoas Major, Iliacus
    • Antagonists: Gluteus Maximus, Semitendinosus, Semimembranosus, Biceps Femoris (long head), Adductor magnus (posterior part)

2. Assists with adduction of the thigh at the hip

    • Agonists: Adductor Longus, Adductor Brevis, Adductor Magnus
    • Antagonists: Gluteus Maximus (upper fibers), Gluteus Medius, Gluteus Minimus

For information about pain and injury see:  Pectineus Muscle: Groin and Pelvic Pain


Anatomy Books Musculoskeletal Anatomy Flashcards Musculoskeletal Flashcards Are you a student or professional therapist who needs to brush up on the musculoskeletal system? Dr. Joseph E. Muscolino DC has developed a comprehensive set of flashcards that will help develop a mind’s picture of exactly where the muscles lie under the skin. A highly recommended study aid for students.  Great for non students who want an easy comprehensive anatomy guide.   coloring_book

 

The Anatomy Coloring Book is one of the best study and reference books for beginning anatomy students. The diagrams are clearly labeled and allow you to see the relationship and placement of the various structures of the body. You will also be surprised how the act of coloring will help with recall. But this is not just a beginners book, it is also great for practitioners and therapists to have on hand to use with clients and patients to use as a visual reference.

 

 

References:

The Trigger Point Therapy Workbook – Claire Davies, Amber Davies, and David G. Simons

Basic Clinical Massage Therapy: Integrating Anatomy and Treatment – James H. Clay and David M. Pounds

Trigger Point Therapy for Myofascial Pain – Donna Finando and Steven Finando

Massage Therapy Principles and Practice – Susan Salvo

Theory & Practice of Therapeutic Massage – Mark Beck