What describes the term "malformation" in prenatal development?

The term "malformation" in prenatal development is best described as an intrinsic error of morphogenesis. This means that a malformation occurs due to an inherent issue in the structural development of the fetus during the embryonic stage. These errors can lead to abnormalities in the formation of organs, limbs, or other structures and are typically the result of genetic factors rather than external influences.

Understanding this concept is essential for recognizing that malformations arise during critical stages of development due to issues in the genetic and cellular processes that guide normal morphological formation. Examples of malformations include congenital heart defects and limb deformities, which showcase clear deviations from the expected development. This intrinsic nature distinguishes malformations from other types of prenatal abnormalities that may arise from environmental factors or maternal health conditions.