Adductor Longus Muscle – Origin, Nerve Supply, Function

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 3 min read
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Adductor Longus Muscle is a major adductor of the thigh. The muscle is the most anterior muscle in the group. It fans out from its origin on the anterior aspect of the pubis and inserts on the linea aspera of the femur. It covers both...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

Adductor Longus Muscle is a major adductor of the thigh. The muscle is the most anterior muscle in the group. It fans out from its origin on the anterior aspect of the pubis and inserts on the linea aspera of the femur. It covers both the anterior portion of the adductor brevis and the central portion of the adductor Magnus. The adductor longus (also adductor...

Key Takeaways

  • This article explains Origin and Insertion of in simple medical language.
  • This article explains Nerve Supply of in simple medical language.
  • This article explains Blood Supply in simple medical language.
  • This article explains Function in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
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Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • Severe symptoms, breathing difficulty, fainting, confusion, or rapidly worsening illness.
  • New weakness, severe pain, high fever, or symptoms after a serious injury.
  • Any symptom that feels urgent, unusual, or unsafe for the patient.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

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Definition

Adductor Longus Muscle is a major adductor of the thigh. The muscle is the most anterior muscle in the group. It fans out from its origin on the anterior aspect of the pubis and inserts on the linea aspera of the femur. It covers both the anterior portion of the adductor brevis and the central portion of the adductor Magnus. The adductor longus (also adductor longus muscle, latin: musculus adductor longus) is one of the adductor muscles located in the medial region of the thigh.

Adductor Longus Muscle - Origin, Nerve Supply, Function

Origin and Insertion of

The adductor longus, a muscle of the medial compartment of the thigh, is triangular in shape and forms in the floor of the femoral triangle and adductor canal.

  • The muscle originates from the anterior surface of the body of the pubis, inferior to pubic crest and lateral to the pubic symphysis. It inserts onto the middle third of the medial lip of the linea Aspera. This insertion point is between the insertion of the adductor Magnus and the origin of vastus medialis muscle, and inferior to the adductor brevis insertion.
  • The adductor longus arises from the body of pubis inferior to pubic crest and lateral to the pubic symphysis. [rx]
  • It lies centrally on the adductor Magnus, and near the femur, the adductor brevis is interposed between these two muscles. Distally, the fibers of the adductor longus extend into the adductor canal.[rx]
  • It is inserted into the middle third of the medial lip of the linea aspera.[rx]

Nerve Supply of

  • The adductor longus is supplied by the anterior division of the obturator nerve. All three adductors (except the hamstring part of the adductor Magnus) and gracilis are supplied by the obturator nerve (anterior divisions of the ventral rami of L2-L4).
  • As part of the medial compartment of the thigh, the adductor longus is innervated by the anterior division (sometimes the posterior division) of the obturator nerve.[rx] The obturator nerve exits via the anterior rami of the spinal cord from L2, L3, and L4.

As the nerve passes the hip, it also gives an articular branch to the joint. It supplies adductor longus, adductor brevis, and gracious.

Blood Supply

  • Deep femoral artery (ventral view)
  • The blood supply to adductor longus comes from two arteries, the profundal femoris artery (a branch of the femoral artery) and the obturator artery (a branch of the internal iliac artery).
  • The proximal part of the muscle is supplied by the medial circumflex artery (branch of the profundal femoris artery). Profunda femoris vein receives tributaries that correspond to the branches of the artery.

Function

  • Its main actions are to abduct and laterally rotate the thigh; it can also produce some degree of flexion/anteversion.[rx]
  • The main action of the adductor group of muscles is to adduct the thigh at the hip joint. The adductor longus muscle also participates in external/lateral rotation and flexion of the thigh.
  • The adductors help to stabilize the stance while standing and also have an important role in balancing the body on the lower limb during walking.

References

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Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

Medicine safety and first-aid guide

This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Rest, drink safe water, and observe symptoms carefully.
  • Keep a written note of symptoms, duration, temperature, medicines already taken, and allergy history.
  • Seek medical care quickly if symptoms are severe, worsening, or unusual for the patient.

OTC medicine safety

  • For mild pain or fever, ask a registered pharmacist or doctor before using common over-the-counter pain/fever medicines.
  • Do not combine multiple pain medicines without advice, especially if you have kidney disease, liver disease, stomach ulcer, asthma, pregnancy, or take blood thinners.
  • Do not give adult medicines to children unless a qualified clinician advises it.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
  • Do not delay emergency care because of home remedies.

Get urgent help if

  • Severe symptoms, confusion, fainting, breathing difficulty, chest pain, severe dehydration, or sudden weakness need urgent medical care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

For rural patients and family caregivers

Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Adductor Longus Muscle – Origin, Nerve Supply, Function

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

RX Patient Help

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Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

References

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