Model Functional Lung Apparatus, unique and easy-to-use model features parts that replicate the actions of respiration, Easy to Assemble, includes an acrylic bell jar, Y tube, two balloons, rubber diaphragm with a knob for ease of movement, and an instruction manual
Model-Heart two parts, 100cm tall, Communicate the basics of heart anatomy to beginning biology students, Colorful and durable, features both external and internal components, including valves, two-piece model is mounted on a stand and can be removed for up-close study
Model Human Child Skull, 13-year-old, With exception of wisdom teeth, all permanent teeth are fully erupted & no deciduous dentition remains, apices of canines, premolars & second molars are approximately one-half to two-thirds closed, Size: 7x5x7in