腸腰筋
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/01/04 14:24:16」(JST)
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| Iliopsoas |
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| Anterior hip muscles. The iliopsoas is not labeled but can be seen as the psoas major and the iliacus join inferiorly. |
| Latin |
musculus iliopsoas |
| Gray's |
subject #127 467 |
| Origin |
iliac fossa, spine |
| Insertion |
lesser trochanter of femur |
| Artery |
medial femoral circumflex artery, iliolumbar artery |
| Nerve |
femoral nerve, L1, L2 |
| Actions |
flexion of hip |
| Antagonist |
Gluteus maximus, posterior compartment of thigh |
The term iliopsoas refers to the combination of the psoas major and the iliacus at their inferior ends. These muscles are distinct in the abdomen, but usually indistinguishable in the thigh. As such, they are usually given the common name "iliopsoas" and are referred to as the "dorsal hip muscles"[1] or "inner hip muscles".[2] The psoas minor does not contribute to the iliopsoas muscle.
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Contents
- 1 Origin
- 2 Insertion
- 3 Innervation
- 4 Properties
- 5 Additional Images
- 6 See also
- 7 Notes
- 8 References
- 9 External links
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Origin
The psoas major originates along the lateral surfaces of the vertebral bodies of T12 and L1-L5 and their associated intervertebral discs. The iliacus originates in the iliac fossa of the pelvis.[2]
Insertion
The psoas major unites with the iliacus at the level of the inguinal ligament and crosses the hip joint to insert on the lesser trochanter of the femur.
Innervation
The psoas major is innervated by direct branches off the lumbar plexus at the levels of L1 and L2, while the iliacus is innervated by the femoral nerve (which is composed of nerves from the anterior rami of L2-L4).
Properties
The iliopsoas is the strongest of the hip flexors (others are rectus femoris, sartorius, and tensor fasciae latae). The iliopsoas is important for standing, walking, and running.[2] The iliacus and psoas major perform different actions when postural changes occur.
It is, however, a typical posture muscle dominated by slow-twitch red type 1 fibers. Therefore, it is susceptible to pathological shortening or contracture, especially in older people with a sedentary lifestyle, and requires regular stretching to maintain normal tone. Such shortening can lead to increased anterior pelvic tilt and lumbar lordosis (unilateral shortening), and limitation of hip extension (bilateral weakness).[2]
The iliopsoas muscle is covered by the iliopsoas fascia, which begins as a strong tube-shaped psoas fascia, which surround the psoas major muscle as it passes under the medial arcuate ligament. Together with the iliac fascia, it continues down to the inguinal ligament where it forms the iliopectineal arch which separates the muscular and vascular lacunae.[3]
Additional Images
See also
- Psoas abscess
- Iliopsoas tendinitis
- Muscles of the hip
Notes
- ^ Platzer (2004), p 234
- ^ a b c d Thieme Atlas of Anatomy (2006), pp 422-523
- ^ Platzer (2004), p 254
References
- Platzer, Werner (2004). Color Atlas of Human Anatomy, Vol 1: Locomotor system (5th ed.). Thieme. ISBN 3-13-533305-1. (ISBN for the Americas 1-58890-159-9.)
- Thieme Atlas of Anatomy. Thieme. 2006. ISBN [[Special:BookSources/31314205112|31314205112]]. (ISBN for the Americas 1-58890-419-9)
- "Iliopsoas". http://www.exrx.net/Muscles/Iliopsoas.html. Retrieved 1 September 2010.
External links
- Muscles/Iliopsoas at exrx.net
- UCC
- Cross section at UV pelvis/pelvis-e12-15
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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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UpToDate Contents
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English Journal
- Extrapulmonary tuberculosis: an unusual presentation in an immunocompetent patient.
- Lombardi R1, Pelusi S1, Airaghi L1, Fargion S1.
- BMJ case reports.BMJ Case Rep.2015 May 6;2015. pii: bcr2014207146. doi: 10.1136/bcr-2014-207146.
- A 50-year-old Brazilian woman was admitted to our department because of pelvic pain irradiated to the lower left limb, ipsilateral ankle swelling and progressive weight loss. Doppler ultrasound demonstrated deep venous femoropopliteal thrombosis, while a thorax-abdomen CT scan showed multiple solid
- PMID 25948843
- Bone microarchitecture at muscle attachment sites: The relationship between macroscopic scores of entheses and their cortical and trabecular microstructural design.
- Djukic K1, Milovanovic P, Hahn M, Busse B, Amling M, Djuric M.
- American journal of physical anthropology.Am J Phys Anthropol.2015 May;157(1):81-93. doi: 10.1002/ajpa.22691. Epub 2014 Dec 29.
- The studies of entheses in bioarchaeology attempted to reconstruct the habitual physical activities of past populations. However, the studies of microarchitecture of the underlying bone are still lacking despite well-known potential of bone internal microarchitecture to reflect mechanical loading. I
- PMID 25546406
- Large strengthening effect of a hip-flexor training programme: a randomized controlled trial.
- Thorborg K1, Bandholm T, Zebis M, Andersen LL, Jensen J, Hölmich P.
- Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA.Knee Surg Sports Traumatol Arthrosc.2015 Mar 22. [Epub ahead of print]
- PURPOSE: To investigate the effect on hip-flexion strength of a 6-week hip-flexor training programme using elastic bands as resistance. We hypothesized that the training group, compared to a control group, would increase their hip-flexion strength more.METHODS: Thirty-three healthy subjects (45 % f
- PMID 25796586
Related Links
- musculus iliopsoas musculus incisivus labii inferioris musculus incisivus labii superioris musculus incisurae helicis musculus incisurae terminalis auriculae musculus infracostalis musculus infraspinatus musculus intercostales ...
- [TA] iliopsoas muscle: a compound muscle consisting of the iliacus and the psoas major ... Look at other dictionaries: Musculus iliopsoas — Musculus psoas major vordere Hüftmuskulatur Ursprung oberflächlicher Anteil ...
★リンクテーブル★
[★]
- 英
- iliopsoas muscle (N,KA), iliopsoas (K,N)
- ラ
- musculus iliopsoas
- 関
- 大腰筋、腸骨筋
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.