hand with mystic symbols
Woah... Whenever I learn this, I will refer back to this pin!!
Kreb Cycle on Jay Holser's The Great Respiratory vol. 18. Metabolism_18
Synaptic Transmission Like wires in your home's electrical system, nerve cells make connections with one another in circuits called neural pathways.
Post text goes here. Image taken from: http://snanccu.blogspot.ie/2013/05/a-journey-through-digestive-system.html
Mystères de la Main - Révélations Complètes - Chiromancie, Phrénologie, Graphologie et Études Physiologiques, by Ad Desbarrolles.
http://ca.images.search.yahoo.com/images/view 1873 Antique ASTRONOMY CHART