Sumber:

http://4.bp.blogspot.com/-45n0zCUKgD8/Tmh7ZVJ0YHI/AAAAAAAAAro/zXaVDZGwI-E/s1600/neuron.jpg

http://soeharmiekav45.files.wordpress.com/2010/03/saraf.jpg

http://moko31.files.wordpress.com/2011/05/dat.jpg

http://slemgaul.files.wordpress.com/2010/11/saraf2b4.jpg

http://4.bp.blogspot.com/-3-kY-UwrAto/UUyM3L16sgI/AAAAAAAAArc/NJJk9gfm8zU/s1600/7+Kelainan+pada+sistem+saraf.png

http://2.bp.blogspot.com/-ORcWc90NoQA/UM2Fm9EDztI/AAAAAAAAEoc/4OxLlzfyQ4E/s1600/Penghantaran-impuls-antarsel-saraf.jpg

http://dc305.4shared.com/doc/yA8KJIoH/preview_html_6a756bc.jpg

http://1.bp.blogspot.com/-ddiLlk8fvug/UM2GALxapdI/AAAAAAAAEos/U4NPh06rK20/s1600/Jalur-perjalanan-gerak-refleks-pada-kaki-dan-tangan-manusia.jpg

http://4.bp.blogspot.com/_4IwHTsRufBg/S6vdJ93Pn8I/AAAAAAAACfM/XCmOQwrfzi8/s1600/HUBUNGAN+SYNAPSIS.bmp

http://2.bp.blogspot.com/-HLdpjwdAS84/UM2KbzqXzHI/AAAAAAAAEqQ/bLB9_903Ydo/s1600/Mekanisme-penghantaran-impuls-melalui-membran-plasma-neuron.jpg