ANATOMY OF THIGH MUSCLE








A. RECTUS femoris muscles
is one of the four quadriceps muscles in the human body. (The other is the m. vastusmedial, who m. vPost Optionsastus intermedius (deep to the rectus femoris), and m.vastus lateralis. All four joined the quadriceps tendon, which insert into the patella andcontinues as the patella ligament.
Rectus femoris which is located in the middle of the front of the thigh, Fusiformis in theform of fibers arranged in a way bipenniform shallow, deep fiber directly across into the aponeurosis.
emerged from the two tendons: one, the anterior or straight, from the anterior inferioriliac spine, the other, the posterior or reflected, from the groove on the top edge ofacetabulum.
Both are united in an acute angle, and spread to the aponeurosis of prolongeddownward on the anterior surface of the muscle, and of these muscle fibers appears.



1) VESTUS INTERMEDIUS Muscles
intermedius (Cruraeus) emerged from the front and lateral body surface of the femur in the upper two-thirds, M. transverse rectus femoris to bottom and from the bottom of the lateral intermuscular septum. Fiber ended aponeurosis, forming the inside of the quadriceps femoris tendon.

2) VESTUS lateralis muscles
vastus lateralis (m. vastus eksternus) is the largest part of the quadriceps femoris. Thisoccurs by a broad aponeurosis, attached to the top of the intertrochanteric line, to theanterior and inferior border of greater trochanter greater, to the lip lateral glutealtuberosity, and the upper half of the lip lateral linea aspera; aponeurosis covers theupper three-fourths from otot.Serat fleshy form large masses, which is attached to astrong aponeurosis, placed on the surface in the bottom of the muscle: thisaponeurosis becomes contracted and thickened into a flat tendon inserted into the lateral border of the patella, blending with the quadriceps femoris tendon, and provide-expansion into the knee joint capsule.
3) medial VESTUS Muscles
medial vastus, often referred to as a 'teardrop' muscle, is located medial quadricepsmuscle.
serves to control the coordination of all control ekstensi.vastus medial knee incurred byan aponeurosis, which is attached to the bottom line that extends from the inside neck of the femur to the linea aspera, the entire length of the linea aspera, and the internalintermuscular septum. It also emerged from almost all internal and external anteriorsurface of the femur shaft, limited above by the line between the two greater trochanterand extending below the bottom of the fourth into the bone. Fiber joined a broadaponeurosis, which covers the anterior surface of the middle and cruraeus surface inthe division in the muscle which is now joined and gradually narrowed; was insertedinto the knee cap, together with other parts of the quadriceps extensor.



B. ADDUCTOR brevis Muscles
Adductor brevis muscle in the thigh is located just behind and adductor longuspectineus, It is somewhat triangular in shape, and emerged with a narrow origin from the outer surface of the superior and inferior pubic rami, between the gracilis andobturator eksternus.

C. ADDUCTOR longus muscles
Starting from the pubic body just below the groin and insert a symbol into the middlethird of linea aspera.

D. Biceps femoris muscles
Muscle biceps femoris muscle is the posterior (back) thigh. As the name suggests, ithas two parts, one of whom (long head) is part of the hamstrings muscle group. Head of a long fiber to form a Fusiformis stomach, which extends downwards and indirectlyin the sciatic nerve lateralward ended in an aponeurosis which covers the surface of the posterior muscle, and receives the fibers of the short head; of this aponeurosisbecomes gradually contracted into a tendon, that is inserted into the lateral side of the head of the fibula, and by a small slip to the lateral tibia condyle.

On insertion of the tendon was divided into two parts, which embrace the fibular collateral ligament of the knee-joint. From the posterior border of the tendon a thin expansion is given to the fascia of the foot. Insertion of muscle tendons form the lateral knee; common fibular (peroneal) nerve medial and off along the border. Both the head of Biceps femoris perform knee flexion. Because of the long head originates in the pelvis was also involved in hip extension. Both the long head of biceps femoris is a weaker knee flexor when the hip is extended (because of lack of active). For the same reason the long head is weaker hip extender when the knee buckled. When the knee flexed, Biceps femoris tilted slightly rotate the leg outward. Short head may not exist; additional head may arise from the ischial tuberosity, linea aspera, medial supracondylar ridge of the femur, or from various other parts.
E. Magnus ADDUCTOR Muscles Adductor magnus is a large triangular muscle, which lies on the side of her thigh dial.The part that comes from ischiopubic ramus (a small part of the inferior pubic ramus and inferior ramus ischium) is called "magnesius adductor portion", and the part arising from the tuberosity of the ischium is called "hamstring portion". Hamstring part that is not considered part of the hamstring muscle group, but adjacent to it. fibers arising from the pubic ramus short, horizontal in direction, and inserted into the rough line leading from the greater trochanter femur greater for the linea aspera, medial to the gluteus maximus. fibers from the ramus ischium directed downward and laterally with different degrees toward the side, to be inserted into a broad aponeurosis, into the linea aspera and the upper part of the medial extension downwards.



The medial part of the muscle, mainly composed of fibers arising from the tuberosity of the ischium, forms a thick fleshy mass consisting of a collection of crude fell almost vertically, and ends around the lower third of the thigh in a rounded tendon which is inserted into the adductor tubercle on the medial condyle of the femur , and connected by a fibrous expansion to the forefront to the top of the tubercle to the linea aspera.
Adductor and knee sections of the muscle is innervated by two different nerves.Adductor portion innervated by the obturator nerve and the hamstring is innervated by the sciatic nerve.
On insertion of the muscles, there are a series of osseoaponeurotic openings, formed by tendinous arches attached to the bone. Top four small openings, and give way to the deep perforating branches femoris artery. Lowest (often referred to as the adductor hiatus) is a large size, and sends the femoral artery popliteal fossa.
The function of the adductor magnus is to serve as a powerful adductor of the thigh, and able to extend the thigh.
F. Gracilis muscle is the most superficial muscle on the medial side of thigh. It is thin and flat, wide above, narrow and tapering below. This occurs by a thin aponeurosis from the anterior margin of the bottom of the symphysis pubis and upper half of the pubic arch.Muscle fibers that run vertically downward, ending with a round tendon. These tendons pass behind the medial condyle of the femur, curves around the medial tibia condyle which becomes flat, and incorporate it into the top surface of the body medial tibia, below the condyle. As a result of this is the adductor muscle of the lower limb. On insertion of the tendon is located just above that of m. semitendinosus muscle, and side-on overlap with the tendons of the sartorius muscle, which later merged to form the pes anserinus. Which pes anserinus separated from the medial collateral ligament of the knee-joint by the exchanges.
G. Muscle PECTINEUS Pectineus is a flat muscle, square-shaped muscle, situated at the anterior and medial aspect of the upper thigh. This is one of the hip muscles are primarily responsible for flexion. Innervation is by the femoral nerve. emerged from pectineal line and a little from the surface of the pubic bone in front of him, between iliopectineal eminence and tubercle of the pubis, and from the fascia covering the anterior surface of the muscle; through the fibers down, backward, and lateralward, to put in a line leading to femur pectineal of the lesser trochanter to the linea aspera.
H. Quadriceps femoris muscle Quadriceps femoris also called simply the quadriceps, quadriceps extensor, quadriceps, is the large muscle group which includes the four prevailing muscles on the front of the thigh. It is a large knee extensor muscles, fleshy form large masses that include the front and side of the thigh bone. This is the strongest and most slender muscles in the human body.
I. Sartorius Muscle is a long thin muscle that runs along the thigh. This is the longest muscle in the human body. The top forming the lateral border of the femoral triangle. Sartorius is a muscle that arises by the fibers of the anterior superior iliac spine, passing indirectly above and the anterior thigh in the inferomedial direction. It fell as far as the medial side of the knee, passing behind the medial condyle of the femur ends of the tendons. This tendon is curved anteriorly to join with the tendons of the gracilis muscle semitendinous and which together form anserinus pes, eventually extending into the proximal tibia on the medial surface of the body.
J. Muscle SEMIMEMBRANOSUS semimembranosus is in the back of the thigh muscle. This is the most medial of the three hamstring muscles. semimembranosus, so called from the membrane tendon origin, situated at the rear and the medial side of thigh. This occurs by a thick tendon from above and outside the tuberosity ischium, above and medial to the biceps femoris and m. semitendinosus. Originally tendon expands into aponeurosis, which covers the top surface of the anterior muscle; of this aponeurosis muscular fibers arise, and joined to another aponeurosis which covers the bottom surface of the posterior muscle and tendon insertion into the contract.
Tendons provide particular fibrous expansion: one, a fairly large, pass upward and laterally to be inserted into the back of the lateral condyle of the femur, forming part of the oblique popliteal ligament of the knee-joints; both continued down to the fascia covering the muscle fibers Popliteus while some tibial collateral ligament joining the joints and fascia of the foot. persarapan semimembranosus is innervated by the tibial part of sciatic nerve.
semimembranosus help to extend (straighten) the hip joint and flex (bend) the knee joint. It also helps rotate the medial knee.
K. Semitendinosus muscle the semitendinosus muscle in the back of the thigh, but is one of the hamstrings.semitendinosus located in the posterior and medial aspect of thigh. from below and medial impression on the tuberosity of the ischium, by a common tendon and biceps femoris long head; it also arises from an aponeurosis which connects the adjacent surfaces of the two muscles about 7.5 cm long.
Fusiformis ended slightly below middle thigh long round tendon which lies along the medial side of the popliteal fossa, but then the curve on the medial tibia condyle and tibial collateral ligament passes over the knee-joint, from which is separated by a stock exchange, and inserted into the top surface of the medial body of the tibia, almost as far forward as the symbol of the anterior.
Her nerves are innervated by the tibial part of sciatic nerve. semitendinosus help to extend (straighten) the hip joint and flex (bend) the knee joint. It also helps rotate the medial knee.
L. Tensor FASCIAE LATAE Muscle This arises from the anterior portion of the outer lips of the iliac crest; from the outer surface of the anterior superior iliac spine, and part of the outer border of the notch below it, between the gluteus medius and the sartorius, and from the inside surface of the fascia lata.
It is sandwiched between two layers of fascia lata of the iliotibial band crossing the middle and upper thirds of the thigh.
to stabilize the pelvis on the head of the femur, and by using the iliotibial band steadies the condyles of the femur on the articular surface of tibia, and help Glutæus maximus in supporting the knee in extension position.
M. ILLIOPSOAS Origonya located on vertebrae ilium while insersionya lies in the femur and befungsi for flexi thighs, around to the lua, and flexi tubuh.sedangkan lumbar nerves are neuro and neuro femuralis. 

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