|
This twice life-size model is an excellent alternative to
dissection of natural specimens. It features a dissectible, highly-detailed
3-chamber heart. This replica of a sexually mature female bullfrog, Rana
catesbiana, includes such fine points as internal nares, vomerine teeth, eustachian
tube, and the nictitating membrane of the eye.
Fully dissected, the ventral aspect exposes all the
viscera, the buccal cavity, and the musculature of the hind leg. Half of the
mandible, tongue, and glottis remove as a unit for detailed study. Strategic
cutaways of the internal organs reveal the bronchi of the lung, stomach rugae, and the
lumen of the large intestine. Multi-level dissections of the dorsal aspect expose
the brain and nervous system, the eye and optic nerve, the ear - with cutaway through the
typanum revealing the columella and eustachian tube - and all the bones of
the left side.
Non-breakable, the bullfrog detaches from its hardwood
base for hands-on examination. More than 175 hand-numbered features are identified
in the accompanying key, which also illustrates the male reproductive system.
Overall dimensions are 21 x 15 x 4 inches (53 x 38 x 10 cm).
Manufactured in the U.S.A. by Denoyer-Geppert.
|
The Great American Bullfrog
 |