Schultz's rule

Schultz's rule is a principle in embryology that describes the pattern of growth in the human fetus. Named after German embryologist Friedrich Schultz, the rule states that the growth of the fetus is fastest in the head region, then decreases progressively towards the tail.

Etymology

The rule is named after Friedrich Schultz, a German embryologist who first described the principle. The term "Schultz's rule" is derived from his last name.

Description

Schultz's rule describes a specific pattern of growth in the human fetus. According to this rule, the growth rate is fastest in the head region, then decreases progressively towards the tail. This pattern is observed in the early stages of fetal development, and it is one of the key principles in the field of embryology.

The rule is based on observations of the relative sizes of different parts of the fetus at various stages of development. It is used to estimate the age of a fetus and to identify potential developmental abnormalities.

Related Terms

• Embryology: The branch of biology that studies the formation and early development of living organisms.
• Fetus: The unborn offspring of a mammal, in particular an unborn human baby more than eight weeks after conception.
• Friedrich Schultz: A German embryologist who first described Schultz's rule.

See Also

• Cephalocaudal trend
• Proximodistal trend

References

Schultz's rule Resources
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