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The achilles tendon, tendo calcaneus attaches distally to the calcaneual tuberosity, and arises superiorly from the triceps surae complex of the gastrocnemius and soleus muscles. Achilles tendon at foetus. The Achilles tendon connects muscle to bone, like other tendons, and is located at the back of the lower
Thetis attempted to render her son Achilles invulnerable. In the well-known version, she dipped him in the River Styx, holding him by one heel, which remained vulnerable. In an early and less popular version of the story, Thetis anointed the boy in ambrosia and put him on top of a fire to burn away the mortal parts of his body. She was ...
Some anatomists consider both to be a single muscle—the triceps surae or "three-headed [muscle] of the calf"—since they share a common insertion via the Achilles tendon. The plantaris muscle and a portion of its tendon run between the two muscles, which is involved in "locking" the knee from the standing position.
Thetis, meanwhile, speaks with Hephaestus and begs him to make Achilles armor, which he does. First, he makes for Achilles a splendid shield, and having finished it, makes a breastplate, a helmet, and greaves. [15] When Thetis goes back to Achilles to deliver his new armor, she finds him still upset over Patroclus.
The action of the calf muscles, including the soleus, is plantar flexion of the foot (that is, they increase the angle between the foot and the leg). They are powerful muscles vital in walking, running, and keeping balance. The soleus plays an important role in maintaining standing posture; if not for its constant pull, the body would fall forward.
The large and prominent tendon of the gastrocnemius, soleus, and plantaris muscles of the calf is called the tendo achilleus or Achilles tendon. This is commonly associated with the site of Achilles's death wound. The oldest-known written record of the name is in 1693 by the Flemish/Dutch anatomist Philip Verheyen.
Only skeletal and smooth muscles are part of the musculoskeletal system and only the muscles can move the body. Cardiac muscles are found in the heart and are used only to circulate blood; like the smooth muscles, these muscles are not under conscious control. Skeletal muscles are attached to bones and arranged in opposing groups around joints. [8]
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.