A big factor that contributes to muscle force and speed is fascicle arrangement. Other factors such as fiber type, lever systems and load will be discussed in a separate article.
(via Watercolor skull tattoos by Britta Christiansen · Skullspiration.com - skull designs, art, fashion and moreSkullspiration.com – skull designs, art, fashion and more)
Plastinated brain in an open skull with a neural pathway specimen
Copyright: Gunther von Hagens, Institute for Plastination, Heidelberg, Germany
“it was trapped between two lungs”
(Source: stunnerdd, via illustratedanatomy)
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George Bartisch, Ophthalmodouleia (Dresden 1583)