The following information serves as a guide for
teachers in preparing for a sheep brain or cow eye
dissections. For more information or assistance,
e-mail CBN educator Laura Carruth, PhD, at firstname.lastname@example.org.
Different schools have different policies on
dissections, please check with your school science
chairperson for school-specific guidelines. The Univertsity
of Scrantion offers a nice sheep
brain dissection guide. The Exploratorium in
San Francisco has a great website for eye
dissections with video, as well as a printable
Specimens may be ordered from Carolina
Biological Supply at 1-800-334-5551. Many different
sheep brain preparations are available, although
we recommend ordering specimens without the dura
mater, the tough outer covering of the brain, for
ease of dissection (catalog# CE-22-8700). Cow eyes
come packaged singly (catalog# CE-22-8901), and in
bulk (catalog# CE-22-8902).
Protective Gear & Other
You will also need scalpels or razor blades,
soft-tip probes, and dissection trays (alternately,
one can use a disposable protective covering like
surgical sheets or even heavy duty saran wrap). Protective
gear like latex gloves, goggles, and face masks are
necessary. Remember, you are dealing with biohazardous
materials, one should not dispose of tissue and used
gloves in an everyday trash can, nor should one clean
dissection tools in the bathroom sink. Please check
with your school's science chairperson for appropriate
biohazard cleanup and disposal procedures.
Eye Dissection - a step-by-step instruction manual for dissecting
the eye, accompanied by pictures and sound clips of explainers
(The Exploratorium, San Francisco, CA).
Brain Dissection - University of Scranton's
step-by-step dissection, with labeled images.