Hi Dee
I have just spoken to one of our course writers here at Buttercups and based on the subject matter you require they have recommended the following books:
Ross and Wilson, Anatomy and Physiology in Health and Illness
Vander, Sherman, Luciano, Physiology - The Mechanisms of Body Function
The first book is aimed at Healthcare Professionals such as Nurses and Paramedics whereas the second book is aimed at first year undergraduate students. The second book is certainly lighter reading than the first and explains concepts and mechanisms in a very simple fashion.
If you cut and paste the titles above in to Google, you should find these books available both new and used at competitive prices should you wish to purchase these books to further your own knowledge.
If you require further recommendations, help or advice, please contact Buttercups via
training@buttercups.co.uk or on 0115 9374936