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  2. Achilles tendon - Wikipedia

    en.wikipedia.org/wiki/Achilles_tendon

    The Achilles tendon or heel cord, also known as the calcaneal tendon, is a tendon at the back of the lower leg, and is the thickest in the human body. [1][2][3][4][5][6][excessive citations] It serves to attach the plantaris, gastrocnemius (calf) and soleus muscles to the calcaneus (heel) bone. These muscles, acting via the tendon, cause ...

  3. Ankle jerk reflex - Wikipedia

    en.wikipedia.org/wiki/Ankle_jerk_reflex

    Ankle jerk reflex. The ankle jerk reflex, also known as the Achilles reflex, occurs when the Achilles tendon is tapped while the foot is dorsiflexed. It is a type of stretch reflex that tests the function of the gastrocnemius muscle and the nerve that supplies it. A positive result would be the jerking of the foot towards its plantar surface.

  4. Gastrocnemius muscle - Wikipedia

    en.wikipedia.org/wiki/Gastrocnemius_muscle

    Gastrocnemius muscle. Right leg seen from behind. The gastrocnemius muscle (plural gastrocnemii) is a superficial two-headed muscle that is in the back part of the lower leg of humans. It is located superficial to the soleus in the posterior (back) compartment of the leg. It runs from its two heads just above the knee to the heel, extending ...

  5. Achilles tendinitis - Wikipedia

    en.wikipedia.org/wiki/Achilles_tendinitis

    Achilles tendinitis. Achilles tendinitis, also known as Achilles tendinopathy, is soreness the Achilles tendon. It is accompanied by alterations in the tendon's structure and mechanical properties. [2] The most common symptoms are pain and swelling around the back of the ankle. [1] The pain is typically worse at the start of exercise and ...

  6. Stretch reflex - Wikipedia

    en.wikipedia.org/wiki/Stretch_reflex

    A sudden stretch, such as tapping the Achilles' tendon, causes a reflex contraction in the muscle as the spindles sense the stretch and send an action potential to the motor neurons which then cause the muscle to contract; this particular reflex causes a contraction in the soleus-gastrocnemius group of muscles.

  7. Triceps surae muscle - Wikipedia

    en.wikipedia.org/wiki/Triceps_surae_muscle

    51062. Anatomical terms of muscle. [ edit on Wikidata] The triceps surae consists of two muscles located at the calf – the two-headed gastrocnemius and the soleus. These muscles both insert into the calcaneus, the bone of the heel of the human foot, and form the major part of the muscle of the posterior leg, commonly known as the calf muscle.

  8. Calf (leg) - Wikipedia

    en.wikipedia.org/wiki/Calf_(leg)

    Calf (leg) The calf (pl.: calves; Latin: sura) is the back portion of the lower leg in human anatomy. [1] The muscles within the calf correspond to the posterior compartment of the leg. The two largest muscles within this compartment are known together as the calf muscle and attach to the heel via the Achilles tendon.

  9. Achilles tendon rupture - Wikipedia

    en.wikipedia.org/wiki/Achilles_tendon_rupture

    The main symptom of an Achilles tendon rupture is the sudden onset of sharp pain in the heel. Additionally, a snap or "pop" may be heard as the tendon breaks. Some people describe the pain as a hit or kick behind the lower leg. There is difficulty walking immediately. It may be difficult to push off or stand on the toes of the injured leg.

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