Books:

• The Human Biology; Pocock and Christopher D. Richards

                        Chapter 17

• Human Physiology: From cells to Systems(fourth edition); Laralee Sherwood 
• Medical Physiology (updated edition); Walter F. Boron and Emile L. Boulpaep

Websites:

https://www.fi.edu/learn/heart/

https://www.helium.com/items/1269698-structure-and-function-of-the-heart

Images:

https://www.crystalgraphics.com/f/images/ppt/L/LT_HumanHeart_co_12.jpg

https://upload.wikimedia.org/wikipedia/commons/6/6b/Surface_anatomy_of_the_heart.png

https://commons.wikimedia.org/wiki/File:Diagram_of_the_human_heart_(cropped).svg 

Videos:

https://www.youtube.com/watch?v=hCp4hVC2fnM

DID YOU KNOW ?

https://my.clevelandclinic.org/heart/heartworks/heartfacts.aspx

FAQ reference:

www.proliferation.org.faq/unborn.php