http://www.google.com/search?q=skeletal+system&safe=active&hl=en&gbv=2&prmd=ivnsa&source=lnms&tbm=isch&sa=X&ei=XsGQU8SwKrK_sQStkYKYDA&ved=0CAUQ_AU&surl=1
http://www.google.com/search?q=integumentary+system&safe=active&hl=en&gbv=2&tbm=isch&surl=1&oq=integumentary+system&gs_l=img.3...69392.72915.0.73244.13.11.0.0.0.0.136.210.1j1.2.0....0...1ac.1.34.img..11.2.210.VBt8vE5874k
Human skeleton (Wikipedia) http://en.wikipedia.org/wiki/Human_skeleton
Integumentary system (Wikipedia) http://en.wikipedia.org/wiki/Integumentary_system
Marieb, E. N. (2003). Essentials of Human Anatomy & Physiology. San Francisco: Benjamin Cummings.