What has the author Johannes M uller written?

You're likely thinking of Johannes Müller, also known as Johannes Müller von Koblenz or Johannes Müller the Younger. He was a German anatomist, physiologist, and comparative anatomist who lived from 1801 to 1858. He is considered one of the founders of modern physiology.

Here are some of his most notable works:

* "Handbuch der Physiologie des Menschen für Vorlesungen" (1837-1840): This multi-volume work was a comprehensive treatise on human physiology and became a standard text for many years.

* "Comparative Physiology" (1842): This book explored the similarities and differences in physiological functions across different species.

* "On the Structure and Functions of the Blood" (1830): This work explored the composition and properties of blood.

* "On the Structure and Functions of the Nervous System" (1838): This publication made important contributions to our understanding of the brain and nervous system.

* "Elements of Physiology" (1840): This work was a shorter, more accessible introduction to physiology.

Müller's work was groundbreaking in its time and laid the foundation for many future discoveries in the fields of anatomy and physiology.

It's important to note that there are other individuals named Johannes Müller, so specifying Johannes Müller von Koblenz or Johannes Müller the Younger helps clarify which author you are referring to.