Scientists Say: Histology

This is the study of the microscopic parts of plants or animals

This is an example of a histology specimen. In this case, it’s a tiny piece of a human lung.

GRUMELLI ET AL, 2004 (CC-BY-2.0)

Histology (noun, “Hiss-TAWL-oh-gee”)

This is the study of the microscopic parts of a plant or animal. Histology is focused on the anatomy of tiny structures. This can be anything from studying an onion cell on a microscope slide to looking at the microscopic structures inside ancient fossils. Studying the anatomy of tiny parts of the human body has allowed scientists to figure out how our lungs take in oxygen, what blood is made of and how we reproduce.

In a sentence

Scientists used histology to show that while teens might have brains that are getting smaller, those brains are also getting denser.

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Bethany is the staff writer at Science News for Students. She has a Ph.D. in physiology and pharmacology from Wake Forest University School of Medicine.

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