Activity & Learning Toys

Respiratory System Model, Lung Breathing Model, Diaphragm Movement Simulation Demonstrator, Biology Teaching Aids, for Science Classroom Study Display Teaching Biologic √ The transparent plastic inverted “Y”-shaped trachea is installed in the rubber stopper, and the trachea connects the two lung lobes. √ Before the experiment, take off the rubber bottom first, and blow a little air into the lung lobes through the... Respiratory System Model, Lung Breathing Model, Diaphragm Movement Simulation Demonstrator, Biology Teaching Aids, for Science Classroom Study Display Teaching Biologic