Vividly hand painted Model Dimensions: 19" X 7" 1.5" Identification Key Card Included Base Dimensions: 22" X 12" X 1" Greatly Enlarged The detailed 3D rendering of an earthworm dissection with its large size and vibrantly colored anatomy is ideal for studying the structure and function of the basic structures in an earthworm. Key anatomical parts (mouth, buccal cavity, pharynx, spermathecae, aortic arches, esophagus, crop, gizzard, intestine, dorsal blood vessel, setae, cuticle, lymph gland, ventral nerve cord, accessory gland, common spermatic duct, prostate gland, vas deferens, ovary, oviduct funnel, testes, and seminal vesicle) are colored and numbered for comparison with the anatomy key that is included. This model provides a visually and kinesthetically effective method for studying the structure and function of the anatomy of an earthworm.