What is the thymus?

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It is called the thymus. Gray's Anatomy (1918) describes it as a soft, lobed lymphoid organ.

Summary

It is called the thymus. Gray's Anatomy (1918) describes it as a soft, lobed lymphoid organ.

What it is

  • A soft, lobed lymphoid organ.
  • Prominent in children and adolescents; shrinks after puberty.
  • Where T-lymphocytes mature.

Where it is

  • In the upper chest, behind the sternum.
  • In front of the great vessels and the heart.
  • Extends up into the lower neck in children.

Sources

According to Gray's Anatomy of the Human Body (1918, public domain):

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