mesoderm

Definition

The middle child of embryonic tissue layers that grows up to become your muscles, bones, and circulatory system. While the ectoderm gets all the glory (hello, brain and skin) and the endoderm handles the gut work, the mesoderm is literally holding you together. Medical students memorize this during their first anatomy nightmare—er, semester.

Example Usage

The patient's condition affects mesoderm-derived tissues, particularly the cardiac muscle.

Source: Medical terminology, embryology

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