半腱様筋
WordNet
- make ones way by force; "He muscled his way into the office"
- animal tissue consisting predominantly of contractile cells (同)muscular_tissue
- one of the contractile organs of the body (同)musculus
- authority or power or force (especially when used in a coercive way); "the senators used their muscle to get the party leader to resign"
PrepTutorEJDIC
- 〈U〉(動物体の組織としての)『筋肉』,筋(きん);〈C〉(体の各部を動かす)筋肉 / 〈U〉力,(特に)筋力,腕力 / 《俗に》(…に)強引に割り込む《+『in on』(『into, through』)+『名』》
- 筋肉の,筋力のある / 力ずくの
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/10/02 07:45:59」(JST)
[Wiki en表示]
| Semitendinosus muscle |
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| Muscles of the gluteal and posterior femoral regions. Semitendinosus labeled at bottom left. |
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| Semitendinosus visible at bottom left. |
| Latin |
Musculus semitendinosus |
| Gray's |
subject #128 479 |
| Origin |
Tuberosity of the ischium |
| Insertion |
Pes anserinus (tibia) |
| Artery |
Inferior gluteal artery, perforating arteries |
| Nerve |
Sciatic (tibial, L5, S1, S2) |
| Actions |
Flexion of knee, extension of the hip joint |
| Antagonist |
Quadriceps muscle |
The semitendinosus is a muscle in the back of the thigh; it is one of the hamstrings.
Contents
- 1 Structure
- 2 Innervation
- 3 Actions
- 4 Additional images
- 5 See also
- 6 References
- 7 External links
Structure[edit]
The semitendinosus, remarkable for the great length of its tendon of insertion, is situated at the posterior and medial aspect of the thigh.
It arises from the lower and medial impression on the tuberosity of the ischium, by a tendon common to it and the long head of the biceps femoris; it also arises from an aponeurosis which connects the adjacent surfaces of the two muscles to the extent of about 7.5 cm. from their origin.
The muscle is fusiform and ends a little below the middle of the thigh in a long round tendon which lies along the medial side of the popliteal fossa; it then curves around the medial condyle of the tibia and passes over the medial collateral ligament of the knee-joint, from which it is separated by a bursa, and is inserted into the upper part of the medial surface of the body of the tibia, nearly as far forward as its anterior crest.
At its insertion it gives off from its lower border a prolongation to the deep fascia of the leg and lies behind the tendon of the sartorius, and below that of the gracilis, to which it is united. These three tendons form what is known as the pes anserinus, so named because it looks like the foot of a goose.
A tendinous intersection is usually observed about the middle of the muscle.
Innervation[edit]
A lower motor neuron exits to the sacral plexus exiting through the spinal levels L5-S2. From the sacral plexus, the lower motor neuron travels down the sciatic nerve.[1] The sciatic nerve branches into the deep fibular nerve and the tibial nerve. The tibial nerve innervates the semitendinosus as well as the other hamstring muscles, the semimembranosus and biceps femoris.[2]
Actions[edit]
The semitendinosus helps to extend (straighten) the hip joint and flex (bend) the knee joint. It also helps medially rotate the tibia on the femur when the knee is flexed and medially rotate the femur when the hip is extended. It counteracts forward bending at the hips as well.[1]
Additional images[edit]
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Right hip bone. External surface.
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The popliteal, posterior tibial, and peroneal arteries.
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Back of left lower extremity.
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Muscles of thigt. Lateral view.
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Muscles of thigt. Cross section.
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Muscles of Thigh. Anterior views.
See also[edit]
- Semimembranosus
- Biceps femoris
References[edit]
- ^ a b Saladin, Kenneth S. Anatomy & Physiology: the unity of form and function. 5th ed. New York: McGraw-Hill, 2010. Print.
- ^ Agur, Anne M. R., Arthur F. Dalley, and J. C. Boileau Grant. Grant's Atlas of Anatomy. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins, 2013. Print.
This article incorporates text from a public domain edition of Gray's Anatomy.
External links[edit]
- LUC semt
- SUNY Labs 14:st-0410
- Cross section at UV pembody/body18b
- Anatomy at Dartmouth knee/surface/surface4
- 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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UpToDate Contents
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English Journal
- Effects of wearing gumboots and leather lace-up boots on lower limb muscle activity when walking on simulated underground coal mine surfaces.
- Dobson JA1, Riddiford-Harland DL2, Steele JR2.
- Applied ergonomics.Appl Ergon.2015 Jul;49:34-40. doi: 10.1016/j.apergo.2015.01.006. Epub 2015 Feb 17.
- This study aimed to investigate the effects of wearing two standard underground coal mining work boots (a gumboot and a leather lace-up boot) on lower limb muscle activity when participants walked across simulated underground coal mining surfaces. Quadriceps (rectus femoris, vastus medialis, vastus
- PMID 25766420
- Undernutrition regulates the expression of a novel splice variant of myostatin and insulin-like growth factor 1 in ovine skeletal muscle.
- Jeanplong F1, Osepchook CC2, Falconer SJ3, Smith HK4, Bass JJ5, McMahon CD3, Oldham JM3.
- Domestic animal endocrinology.Domest Anim Endocrinol.2015 Jul;52:17-24. doi: 10.1016/j.domaniend.2015.01.002. Epub 2015 Jan 19.
- Undernutrition suppresses the growth of skeletal muscles and alters the expression of insulin-like growth factor 1 (IGF1), a key mitogen, and myostatin, a potent inhibitor of myogenesis. These changes can explain, at least in part, the reduced growth of skeletal muscles in underfed lambs. We have re
- PMID 25700268
- Effects of forward trunk lean on hamstring muscle kinematics during sprinting.
- Higashihara A1, Nagano Y, Takahashi K, Fukubayashi T.
- Journal of sports sciences.J Sports Sci.2015 Jul;33(13):1366-75. doi: 10.1080/02640414.2014.990483. Epub 2014 Dec 16.
- This study aimed to investigate the effects of forward trunk lean on hamstring muscle kinematics during sprinting. Eight male sprinters performed maximal-effort sprints in two trunk positions: forward lean and upright. A three-dimensional musculoskeletal model was used to compute the musculotendon l
- PMID 25514378
Japanese Journal
- 地域在住高齢女性における足部重錘負荷歩行が膝関節前方動揺量および半腱様筋活動に及ぼす影響
- “Hybrid Exercise” Prevents Muscle Atrophy in Association with a Distinct Gene Expression Pattern
- MATSUGAKI TORU,SHIBA NAOTO,KOHNO SHOHEI,NIKAWA TAKESHI,HIRASAKA KATSUYA,OKUMURA YUUSHI,ISHIDOH KAZUMI,SOEJIMA TAKASHI,YOSHIMITSU KAZUHIRO,NAGATA KENSEI
- The Kurume Medical Journal 57(4), 101-108, 2010
- … “Hybrid exercise” utilizing combined electrical stimulation and voluntary muscle contraction has been developed as a muscle exercise method. … In the present study, we identified genes that are specifically expressed in disused muscles, using the semitendinosus muscle from patients who underwent anterior cruciate ligament (ACL) reconstruction. …
- NAID 130001055545
Related Links
- The semitendinosus muscle is often noted for its remarkable length and its long tendon. It enables flexing of the leg, extending of the thigh, and medial rotation after flexing takes place. The other posterior femoral muscles in the thigh ...
- A tutorial on the attachments, actions, and nerve supply of the semitendinosus muscle, using interactive animations and diagrams. ... Quick Links Skeletal System Muscle Physiology Muscular System Nervous System Respiratory
★リンクテーブル★
[★]
- 英
- semitendinosus muscle (KH), semitendinosus (K)
- ラ
- musculus semitendinosus
- 関
- 股関節の筋
-半腱様筋の脛骨への付着腱は細く索状で固いので、体表から触れることができる (KL.180)
神経
機能
カテゴリ
大腿の屈筋＞:大腿の屈筋
[★]