Muscle Name Origin Insertion Action Innervation Muscles of Upper Extremity Pectoralis Major Medial half of clavicle, front of sternum, costal cartilage Crest of greater tubercle (Lateral ... Soleus -Posterior, superficial Head and posterior surface of fibula and soleal line of tibia Insertion : Semilunar crest and adjacent surface of the cartilage of the distal phalanx , continues as the deep digital flexor tendon to insert on the distal phalanx The two muscles join together at the Achilles tendon and insert on the back side of your heel bone, called the calcaneus. The gastrocnemius muscle is used more during dynamic, higher force activities and soleus muscle is more active during postural and static contractions. Gastrocnemius: Origin, Insertion, Action & Nerve Supply Gastrocnemius: The gastrocnemius is a very potent superficial bipennate muscle that is in the back part of the lower leg muscles. Insertion: Via calcaneal tendon to posterior surface of calcaneus It then fuses with the soleus tendon to form the upper part of tendocalcaneus. There is often an attachment to the oblique popliteal ligament. The medial and lateral gastrocnemius tendons together with the soleus muscle form the calf. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Insertion. It arises from just below the knee to the heel, and is involved in standing and walking. Soleus: Origin, Insertion, Action & Nerve Supply. The soleus muscle courses down the back of your lower leg and is located just beneath your larger gastrocnemius muscle. Soleus Insertion. The origin of a muscle is the point at which it originates on the skeleton. The origin. It is located in the lower leg’s back portion and is one of the two major muscles of the calf of the leg. An easy way to determine the origin of any muscle is to find the point at which the muscle moves the least. the middle of the thigh, covering most of the other three quadriceps muscles. Flexor Hallucis Longus Origin: Fibula, posterior aspect of middle 1/3 Summary. Origin: Soleal line and middle third of posterior border of tibia, and upper quarter of posterior shaft of fibula. Soleus: The soleus is an efficacious muscle in the posterior part of the lower leg muscles(the calf). Keep in mind that origin and insertion are relative terms, and can be reversed depending on the action involved. The tables on the following pages detail the origin, insertion and action of some of the major muscles in the body. Origin is inner side of the head of the fibula, insertion into the upper end of the oblique line of the tibia, it lies beneath the popliteus. Specifically, soleus originates on the soleal line of the tibia and on the head of the fibula. Soleus Action. It is named from its straight course. Start studying Origin, Insertion, Action, Innervation, and Muscles of Leg. The soleus muscle is part of the posterior compartment of the leg. The plantaris muscle arises from the posterosuperior aspect of the lateral femoral condyle, close to the origin of lateral head of gastrocnemius. The soleus originates from the head of the fibula and the soleal line of the tibia.. Insertion. SOLEUS. The calcaneal tendon, also known as the tendon of Achilles, is a posterior leg tendon — a fibrous connective tissue that joins muscles in the back of the leg. Lower Limb Muscles #2 Posterior Compartment of Leg (superficial) *Gastrocnemius and soleus both insert to the calcaneal (Achilles) tendon and together they form the “triceps surae”. Other important calf muscle lies underneath the gastrocnemius muscle, which is named the soleus muscle. Soleus is used constantly in standing to maintain an upright position. origin: fibula and medial border of the tibia (soleal line) via the inverted 'U' tendinous arch; insertion: tendo calcaneus (Achilles tendon) into mid-posterior calcaneus Origin posterior border of iliac crest Insertion inferior border of 12th rib and iliolumbar ligament and ((transverse process of L1-L4)) Action: Actions Alone(unilateral), lateral flexion of vertebral column; Together (bilateral), depression of thoracic rib cage Origin Of The Rectus Femoris is On The Ilium. The soleus muscle joins the plantaris and gastrocnemius muscles to insert onto the calcaneus via a common tendon – the Achilles tendon (calcaneal tendon). This is a view of the back of the right leg; most of the gastrocnemius muscle has been removed. The Rectus Femoris muscle is part of the Quadriceps muscle group. Insertion: Top of the patella and the patella tendon to the tibial tuberosity. [1] Another variant, the cyamella, is a small sesamoid bone embedded in the tendon of the popliteus muscle. Where do the soleus muscles attach? As the gastrocnemius crosses knee and ankle, the position of the knee during the plantar flexion resistance exercise affects activity of the muscle. Soleus has three origin points, one of which being the tendinous arch of soleus which spans between the tibia and fibula. Whether or not such a muscle might be vestigial or may be providing some essential function has not been determined. Soleus Origin. Origin: The deep digital flexor muscle has three heads, originating from the lateral condyle of the fibula, the caudal and medial aspect of the tibia. Soleus muscle Origin of Soleus Posterior aspect of fibular head, upper 1/4 - 1/3 of posterior surface of fibula, middle 1/3 of medial border of tibial shaft, and from posterior surface of a tendinous arch spanning the two sites of bone origin. 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