| Adductor longus muscle |
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| The adductor longus and nearby muscles |
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| Structures surrounding right hip-joint. (Adductor longus at upper right.) |
| Latin |
Musculus adductor longus |
| Gray's |
subject #128 472 |
| Origin |
pubic body just below the pubic crest |
| Insertion |
middle third of linea aspera |
| Artery |
obturator artery |
| Nerve |
anterior branch of obturator nerve |
| Actions |
adduction of hip, flexion of hip joint |
In the human body, the adductor longus is a skeletal muscle located in the thigh. One of the adductor muscles of the hip, its main function is to adduct the thigh and it is innervated by the obturator nerve. It forms the medial wall of the femoral triangle.
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Contents
- 1 Origin and insertion
- 2 Relations
- 3 Actions
- 4 Innervation
- 5 Development
- 6 References
- 7 Additional images
- 8 External links
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Origin and insertion
The adductor longus arises from the superior ramus of the pubis. [1]
It lies ventrally 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.[1]
It is inserted into the middle third of the medial lip of the linea aspera.[1]
Relations
The adductor longus is in relation by its anterior surface with the pubic portion of the fascia lata, and near its insertion with the femoral artery and vein.
By its posterior surface with the adductor brevis and magnus, the anterior branches of the obturator artery, vein, and nerves, and near its insertion with the profunda artery and vein.
By its outer border with the pectineus, and by the inner border with the gracilis.
[2]
Actions
Its main actions is to adduct and laterally rotate the femur; it can also produce some degree of flexion/anteversion.[1]
Innervation
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.[1] The obturator nerve exits via the anterior rami of the spinal cord from L2, L3, and L4.[3][not in citation given]
Development
Adductor longus is derived from the myotome of spinal roots L2, L3, and L4.[4]
References
- ^ a b c d e Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol. 1, Locomotor System (5th ed.). Thieme. p. 242. http://books.google.com/books?id=Bl8RO_Tq7zoC&pg=PA242.
- ^ Wilson, Erasmus (1851). The anatomist's vade mecum: a system of human anatomy. p. 260. http://books.google.com/books?id=t2M1AV1aYWQC&pg=PA260.
- ^ Saladin, Kenneth S. Anatomy & Physiology: The Unity of Form and Function. 5th ed. Boston: McGraw-Hill, 2009.
- ^ Aatif M. Husain (2008). A practical approach to neurophysiologic intraoperative monitoring. Demos Medical Publishing. p. 23. http://books.google.com/books?id=Gxz22SdPwa4C&pg=PA23.
Additional images
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Right hip bone. External surface.
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Muscles of the iliac and anterior femoral regions.
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Deep muscles of the medial femoral region.
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The left femoral triangle.
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The lumbar plexus and its branches.
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Cross section through thigh.
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External links
- LUC adlg
- Cross section at UV pembody/body18b
- Cross section at UV pelvis/pelvis-e12-15
- PTCentral
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List of muscles of lower limbs (TA A04.7, GA 4.465)
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Iliac region
/ Iliopsoas |
psoas major/psoas minor · iliacus
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| Buttocks |
gluteals: (maximus, medius, minimus) · tensor fasciae latae
lateral rotator group: quadratus femoris · inferior gemellus · obturator internus · superior gemellus · piriformis
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Thigh /
compartments |
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Anterior
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sartorius · quadriceps (rectus femoris, vastus lateralis, vastus intermedius, vastus medialis) · articularis genu
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Posterior/hamstring
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biceps femoris · semitendinosus · semimembranosus
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Medial
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pectineus · obturator externus · gracilis · adductor (longus, brevis, magnus, minimus)
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Fascia
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Femoral sheath (Femoral canal) · Femoral ring
Adductor canal · Adductor hiatus
fascia lata (Iliotibial tract, Lateral intermuscular septum of thigh, Medial intermuscular septum of thigh, Fascia cribrosa/Saphenous opening) · Muscular lacuna
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Leg/
Crus/
compartments |
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Anterior
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tibialis anterior · extensor hallucis longus · extensor digitorum longus · fibularis tertius
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Posterior
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superficial · triceps surae (gastrocnemius, soleus, accessory soleus, Achilles tendon) · plantaris
deep · tarsal tunnel (flexor hallucis longus, flexor digitorum longus, tibialis posterior) · popliteus
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Lateral
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fibularis muscles (longus, brevis)
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Fascia
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Pes anserinus
crural fascia (Anterior crural intermuscular septum, Posterior crural intermuscular septum, Transverse intermuscular septum)
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| Foot |
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Dorsal
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extensor hallucis brevis · extensor digitorum brevis
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Plantar
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1st layer (abductor hallucis, flexor digitorum brevis, abductor digiti minimi) · 2nd layer (quadratus plantae, lumbrical muscle) · 3rd layer (flexor hallucis brevis, adductor hallucis, flexor digiti minimi brevis) · 4th layer (dorsal interossei, plantar interossei)
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Fascia
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Plantar fascia
retinacula (Fibular, Inferior extensor, Superior extensor, Flexor)
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anat (h/n, u, t/d, a/p, l)/phys/devp/hist
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noco(m, s, c)/cong(d)/tumr, sysi/epon, injr
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