Achilles Tendon - Anatomy

Anatomy

The Achilles is the tendonous extension of 2 muscles in the lower leg: gastrocnemius and soleus. In humans, the tendon passes posterior to the ankle. It is the thickest and strongest tendon in the body. It is about 15 centimetres (6 in) long, and begins near the middle of the calf, but receives fleshy fibers on its anterior surface, almost to its lower end. Gradually becoming contracted below, it is inserted into the middle part of the posterior surface of the calcaneus, a bursa being interposed between the tendon and the upper part of this surface. The tendon spreads out somewhat at its lower end, so that its narrowest part is about 4 centimetres (1.6 in) above its insertion. It is covered by the fascia and the integument, and stands out prominently behind the bone; the gap is filled up with areolar and adipose tissue. Along its lateral side, but superficial to it, is the small saphenous vein. The Achilles' muscle reflex tests the integrity of the S1 spinal root. The tendon can receive a load stress 3.9 times body weight during walking and 7.7 times body weight when running.

Read more about this topic:  Achilles Tendon

Other articles related to "anatomy":

Anatomy - Other Branches
... Comparative anatomy relates to the comparison of anatomical structures (both gross and microscopic) in different animals ... Anthropological anatomy or physical anthropology relates to the comparison of the anatomy of different races of humans ... Artistic anatomy relates to anatomic studies for artistic reasons ...
Guy De Chauliac - Works - Chirurgia Magna - Emphasis On Anatomy
... in the latter's belief that surgeons should have a thorough understanding of anatomy ... He wrote, "A surgeon who does not know his anatomy is like a blind man carving a log" ...
Somatosensory System - Anatomy - Brain
... A relationship between the somatosensory cortical areas and their projection of the body was discovered by recording electrical activity in the human cortex after mechanosensory stimulation of different body parts during neurosurgical procedures ... These data led to the construction of somatotopic maps in which a Somatotopic arrangement was generated ...
Pale-throated Sloth - Description - Anatomy
... The mouth is lined by a black colored mucosa, although the large and heavy tongue is pink ... The palate is wrinkled in texture, and the tongue is lined with numerous grooves, apparently adaptations to the sloth's diet ...
Prosector
... important anatomists began their careers as prosectors working for lecturers and demonstrators in anatomy and pathology ... prepared by a prosector – a person who is well versed in anatomy and who therefore prepares a specimen so that others may study and learn anatomy from it ...

Famous quotes containing the word anatomy:

    I love to see, when leaves depart,
    The clear anatomy arrive,
    Roy Campbell (1902–1957)

    But a man must keep an eye on his servants, if he would not have them rule him. Man is a shrewd inventor, and is ever taking the hint of a new machine from his own structure, adapting some secret of his own anatomy in iron, wood, and leather, to some required function in the work of the world. But it is found that the machine unmans the user. What he gains in making cloth, he loses in general power.
    Ralph Waldo Emerson (1803–1882)

    Man is a shrewd inventor, and is ever taking the hint of a new machine from his own structure, adapting some secret of his own anatomy in iron, wood, and leather, to some required function in the work of the world.
    Ralph Waldo Emerson (1803–1882)