1、 Scope of application
The heartbeat and blood circulation model of Ningbo Kaidi Science and Education Instrument Co., Ltd.'s teaching instrument is suitable as a visual teaching tool for explaining human blood circulation courses in middle schools and colleges, solving the key and difficult points in teaching, and helping students understand the heartbeat cycle and note the pathways of circulation.
2、 Teaching Content: General Teaching Instruments
1. The model of biological teaching instruments and equipment for heart rate and blood circulation can represent the position of the heart, valves, lungs, kidneys, stomach, intestines, etc. in the coronal plane of the human body.
The relative position of the heart beat in the human body. In order to highlight the blood circulation and cardiac cycle, some pacemakers were reduced or enlarged and appropriately shifted.
2. The heart rate and blood circulation model of this biology teaching instrument and equipment adopts electromechanical principles, which can vividly, vividly, and accurately reflect the basic principles of blood circulation and the heart beat cycle.
3. This model is made of transparent plastic PVC and can clearly display the color conversion of systemic circulation, pulmonary circulation, arterial blood, and venous blood, as well as the periodic pulsation of myocardial valves, through the flicker of the light-emitting tube.
3、 Model structure:
1. The heart and blood circulation model of this biology teaching instrument and equipment is made of soft enamel PVC, while other blood vessels and organs are molded with transparent plastic.
2. The directional flow of blood is displayed using a light-emitting tube.
3. Motor control is used for myocardial and valve pulsation.
4、 Operation demonstration:
1. Connect the 220V power supply.
2. Pressing the switch can clearly display the pathway of blood (light) throughout the body. The myocardium and valves have regular pulsations.
3. When displaying the heartbeat and blood circulation of a normal person, the speed switch can be controlled according to demonstration needs.
5、 Precautions for use and storage:
1. Open the box, take out the model and place it gently in its normal position.
