Friday’s Page 69 ~ Kay’s Anatomy: A Complete (and Completely Disgusting) Guide to the Human Body
Unlike most train services, your blood’s always on the go – even when you’re fast asleep. It also defends you from illnesses! So it’s a postal service, a rubbish collection department and a security guard. Oh, and it’s a central-heating system too, working with its mate the skin so that your body is alwasy that lovely 37 degrees. Plus, of course, it’s a delicious snack. (Please ignore the last sentence if you’re not a vampire.)