Leg muscles

• Muscles in the posterior (flexor) compartment of the leg are organized into two groups, superficial and deep, separated by a layer of deep fascia.
• The muscles mainly plantarflex and invert the foot and flex the toes.
• All are innervated by the tibial nerve.
• The superficial group of muscles in the posterior compartment of the leg comprises three muscles—the gastrocnemius, plantaris, and soleus—all of which insert onto the heel (calcaneus) of the foot and plantarflex the foot at the ankle joint.
• The gastrocnemius muscle is the most superficial of the muscles in the posterior compartment and is one of the largest muscles in the leg.
• The gastrocnemius muscle originates from two heads, one lateral and one medial: the medial head is attached to an elongate roughening on the posterior aspect of the distal femur just behind the adductor tubercle and above the articular surface of the medial condyle, while the lateral head originates from a distinct facet on the upper lateral surface of the lateral femoral condyle where it joins the lateral supracondylar line.
• The muscles in the posterior compartment mainly plantarflex and invert the foot and flex the toes.
• The superficial group of muscles in the posterior compartment of the leg comprises three muscles—the gastrocnemius, plantaris, and soleus—all of which insert onto the heel (calcaneus) of the foot and plantarflex the foot at the ankle joint.
• The lateral head of the gastrocnemius muscle originates from a distinct facet on the upper lateral surface of the lateral femoral condyle where it joins the lateral supracondylar line.
• These muscles are large and powerful because they propel the body forward off the planted foot during walking and can elevate the body upward onto the toes when standing.
• Muscles in the posterior (flexor) compartment of the leg are organized into two groups, superficial and deep, separated by a layer of deep fascia.
• The gastrocnemius muscle originates from two heads, one lateral and one medial:
• Two of the muscles in the superficial group—the gastrocnemius and plantaris—originate on the distal end of the femur and can also flex the knee.
• The gastrocnemius muscle is the most superficial of the muscles in the posterior compartment and is one of the largest muscles in the leg.
• All muscles in the posterior compartment are innervated by the tibial nerve.
• The medial head of the gastrocnemius muscle is attached to an elongate roughening on the posterior aspect of the distal femur just behind the adductor tubercle and above the articular surface of the medial condyle.
• The superficial group of muscles in the posterior compartment of the leg comprises three muscles—the gastrocnemius, plantaris, and soleus—all of which insert onto the heel (calcaneus) of the foot and plantarflex the foot at the ankle joint.
• The gastrocnemius muscle originates from two heads, one lateral and one medial.
• All of the muscles in the posterior compartment are innervated by the tibial nerve.
• Two of the muscles, the gastrocnemius and plantaris, originate on the distal end of the femur and can also flex the knee.
• The superficial group of muscles mainly plantarflex and invert the foot and flex the toes.
• These muscles are large and powerful because they propel the body forward off the planted foot during walking and can elevate the body upward onto the toes when standing.
• Muscles in the posterior (flexor) compartment of the leg are organized into two groups, superficial and deep, separated by a layer of deep fascia.
• The medial head of the gastrocnemius muscle is attached to an elongate roughening on the posterior aspect of the distal femur just behind the adductor tubercle and above the articular surface of the medial condyle.
• The lateral head of the gastrocnemius muscle originates from a distinct facet on the upper lateral surface of the lateral femoral condyle where it joins the lateral supracondylar line.
• The gastrocnemius muscle is the most superficial of the muscles in the posterior compartment and is one of the largest muscles in the leg.
• The gastrocnemius muscle originates from two heads, one lateral and one medial.
• The medial head of the gastrocnemius muscle is attached to an elongate roughening on the posterior aspect of the distal femur just behind the adductor tubercle and above the articular surface of the medial condyle.
• Muscles in the posterior (flex
• Two of the muscles in the posterior compartment of the leg, the gastrocnemius and plantaris, originate on the distal end of the femur and can also flex the knee.
• The lateral head of the gastrocnemius muscle originates from a distinct facet on the upper lateral surface of the lateral femoral condyle where it joins the lateral supracondylar line.
• Large and powerful muscles propel the body forward off the planted foot during walking and can elevate the body upward onto the toes when standing.
• Muscles in the posterior (flexor) compartment of the leg are organized into two groups, superficial and deep, separated by a layer of deep fascia.
• The gastrocnemius muscle is the most superficial of the muscles in the posterior compartment and is one of the largest muscles in the leg.
• The gastrocnemius, plantaris, and soleus muscles are large and powerful because they propel the body forward off the planted foot during walking and can elevate the body upward onto the toes when standing.
• The medial head of the gastrocnemius muscle is attached to an elongate roughening on the posterior aspect
• The medial head of the gastrocnemius muscle is attached to an elongate roughening on the posterior aspect of the distal femur just behind the adductor tubercle and above the articular surface of the medial condyle.
• The superficial group of muscles in the posterior compartment of the leg comprises three muscles—the gastrocnemius, plantaris, and soleus—all of which insert onto the heel (calcaneus) of the foot and plantarflex the foot at the ankle joint.
• The superficial group of muscles in the posterior compartment of the leg comprises three muscles—the gastrocnemius, plantaris, and soleus—all of which insert onto the heel (calcaneus) of the foot and plantarflex the foot at the ankle joint.
• The gastrocnemius muscle is the most superficial of the muscles in the posterior compartment and is one of the largest muscles in the leg.