Cases Quote by Leonardo da Vinci
“There are many occasions when the muscles that form the lips of the mouth move the lateral muscles that are joined to them, and there are an equal number of occasions when these lateral muscles move the lips of this mouth, replacing it where it cannot return of itself, because the function of muscle is to pull and not to push except in the case of the genitals and the tongue.”
About This Quote
Source Notebook: Codex Atlanticus, ca. 1508
Muscle function is primarily pulling; exceptions exist in specific anatomy.
In simple terms: Muscles mainly pull, not push.
Key Takeaway
Consider anatomy in movement design.
Themes
anatomy
physiology
design
Mood
analytical
curious
Type
scientific
philosophical
When to use this quote
- exercise
- rehabilitation
- robotics
Key Concepts
biomechanics
engineering
Questions to Reflect On
- How does this affect prosthetic design?
- What muscles defy this rule?
A Different Perspective
Push actions are rare in biology.
![“I can recognize any one by the teeth, with whom I have talked. I always watch the lips and mouth: they tell what the tongue and eyes try to conceal. [at the funeral of Percy Bysshe Shelley, according to E.J. Trelawny]” quote by George Gordon Byron](https://sms4smile.com/quotes/img-quotes/1c9/george-gordon-byron-10466_mouth-tell_i-can-recognize-any-one-by-the-teeth-wit_2668649.jpg)
![“[As in the case of] alcohol prohibition, illegality has driven organized crime, sent countless people to jail, and killed many thousands. Repression does not work.” quote by Sam Branson](https://sms4smile.com/quotes/img-quotes/212/sam-branson-36458_alcohol_as-in-the-case-of-alcohol-prohibition-il_8703.jpg)
