Adductor Longus Muscle Anatomy

Overview
Origin Body of the pubis (inferior to the pubic crest)
Insertion Middle third of linea aspera of femur (medial lip)
Action Hip adduction
Hip flexion
Nerve Obturator nerve (L2, L3, L4)
Artery Obturator artery
Medial femoral circumflex artery

Location & Overview

The adductor longus muscle is located in the thigh and as its name suggests, it is primarily involved in adduction of the hip joint. It also is part of the femoral triangle’s medial wall. The adductor complex is comprised of three muscles: the adductor longus, adductor magnus and the adductor brevis. The adductor longus is the most commonly injured adductor muscle accounting for 62% to 90% of adductor injury cases [1] [2].

adductor longus in isolation from a superficial view

Here we can see pictured the adductor longus in isolation from a superficial view.

adductor longus in isolation from an anterior view

Here we can see pictured the adductor longus in isolation from an anterior view.

adductor longus in isolation from a posterior view

Here we can see pictured the adductor longus in isolation from a posterior view.

Origin & Insertion

The adductor longus muscle originates from the body of the pubis (just inferior to the pubic crest). It then travels to the posterior of the femur to form its insertion. Specifically, the insertion is on the medial lip of the middle third of the linea aspera of the femur [3] [4] [5].

origin of the adductor longus marked in red

Here we can see pictured the origin of the adductor longus marked in red. The origin is on the medial third of linea aspera of the femur.

insertion of the adductor longus marked in blue

Here we can see pictured the insertion of the adductor longus marked in blue. The insertion is on the body of the pubis (inferior to the pubic crest).

Actions

The adductor longus is mainly involved in adduction of the hip. However, it can also contribute to flexion of the hip joint [6] [7] [8]. Some authors have also suggested it is involed in minor medial rotation of the hip joint [9].

Innervation

The adductor longus muscle is innervated by the obturator nerve (L2, L3, L4) [10].

Blood Supply

Blood is supplied to the adductor longus by the obturator artery and medial femoral circumflex artery[11].

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Adductor Longus Flashcards

References

References
1 Eckard TG, Padua DA, Dompier TP, Dalton SL, Thorborg K, Kerr ZY. Epidemiology of Hip Flexor and Hip Adductor Strains in National Collegiate Athletic Association Athletes, 2009/2010-2014/2015. Am J Sports Med. 2017 Oct;45(12):2713-2722. doi: 10.1177/0363546517716179. Epub 2017 Jul 26. PMID: 28745561.
2, 5 Moore KL, Agur AMR, Dalley AF. Clinically Oriented Anatomy. 8th ed. Philadelphia: Lippincot Williams & Wilkins; 2017.
3, 6, 9, 10 Kiel J, Kaiser K. Adductor Strain. [Updated 2021 Jul 25]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK493166/
4 Davis JA, Stringer MD, Woodley SJ. New insights into the proximal tendons of adductor longus, adductor brevis and gracilis. Br J Sports Med. 2012 Sep;46(12):871-6. doi: 10.1136/bjsports-2011-090044. Epub 2011 Oct 17. PMID: 22006933.
7 Serner A, Mosler AB, Tol JL, Bahr R, Weir A. Mechanisms of acute adductor longus injuries in male football players: a systematic visual video analysis. Br J Sports Med. 2019 Feb;53(3):158-164. doi: 10.1136/bjsports-2018-099246. Epub 2018 Jul 13. PMID: 30006458.
8 Feldman K, Franck C, Schauerte C. Management of a nonathlete with a traumatic groin strain and osteitis pubis using manual therapy and therapeutic exercise: A case report. Physiother Theory Pract. 2020 Jun;36(6):753-760. doi: 10.1080/09593985.2018.1492658. Epub 2018 Jul 6. PMID: 29979902.
11 Jeno SH, Schindler GS. Anatomy, Bony Pelvis and Lower Limb, Thigh Adductor Magnus Muscle. [Updated 2021 Aug 8]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2021 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK534842/