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Diaphragm motion model for teaching and application thereof

A movement model and teaching technology, applied in teaching models, educational tools, instruments, etc., to achieve the effect of simple structure and easy operation

Inactive Publication Date: 2021-04-02
蒙阴县桃墟镇中心学校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the experimental phenomenon cannot fully allow students to understand the causal relationship between the rising of the top of the rubber film and the inhalation of the balloon caused by the falling of the top of the rubber film.

Method used

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  • Diaphragm motion model for teaching and application thereof
  • Diaphragm motion model for teaching and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 In the middle, the glass dome (5) simulates the thorax, the glass tube (3) simulates the trachea and bronchi, the balloon (4) simulates the lung, the rubber membrane (6) simulates the diaphragm, the rubber tube (1) and the clip (2) are used for air flow opening and closing device.

[0012] figure 2 In the above, the steps and phenomena of using the diaphragm movement model are: 1. Clamp the rubber tube with a clip, push up the rubber membrane, and the balloon does not shrink. 2. Remove the clip on the rubber tube, and the balloon shrinks to let out air. 3. Clamp the rubber tube with a clip, and then loosen or pull down the rubber film, the balloon will not expand. 4. Remove the clamp on the rubber tube, and expand the balloon to inhale.

[0013] The diaphragm movement model and its use are made into paper or electronic publications in the form of text and pictures for teaching.

[0014] The diaphragm movement model and its use are audiovisually produced f...

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Abstract

The invention discloses a diaphragm motion model for teaching and application thereof. The model is mainly composed of a glass cover, a glass tube, a balloon, a rubber film and an airflow opening andclosing device, the balloon is located in the glass cover, the lower end of the glass tube is connected with the balloon, the upper end is communicated with the outside through a glass cover upper opening, the rubber film is tied to a glass cover lower opening, and the airflow opening and closing device is installed at the upper end of the glass tube. The model is used by the following steps thatthe airflow opening and closing device is closed, and the rubber film is pushed upwards without reducing the balloon; the airflow opening and closing device is opened, and the balloon shrinks to discharge air; the airflow opening and closing device is closed, the rubber film is loosened or pulled down, and the balloon is not expanded; the air flow opening and closing device is opened to expand theballoon to suck air. Through the use of the diaphragm motion model, students can more fully understand the causal relationship of expiration caused by reduction of thorax volume and inspiration caused by increase of thorax volume. The model is simple in structure, convenient to operate and suitable for teaching. The model and the application thereof can be made into paper or electronic publications in the form of characters and pictures, and can also be made into audio and video products in the form of audios and videos for teaching.

Description

technical field [0001] The invention relates to a diaphragm movement model for teaching and its application. Background technique [0002] The process of gas exchange in the lungs is one of the key points and difficulties in junior high school biology teaching. Therefore, the People’s Education Press’s 2012 edition of the second volume of biology for the seventh grade and the Beijing Normal University Press’ 2012 edition of the second volume of biology for the seventh grade have both arranged Diaphragm movement model experiment. The diaphragm movement model is mainly composed of a glass cover, a glass tube, a balloon and a rubber film. The balloon is located in the glass cover. The mask simulates the thorax, the glass tube simulates the trachea and bronchi, the balloon simulates the lungs, and the rubber membrane simulates the diaphragm. During the test, push up the rubber film, the balloon inside the glass cover will shrink, and the air in the balloon will enter the outsi...

Claims

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Application Information

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IPC IPC(8): G09B23/36G09B23/28
CPCG09B23/28G09B23/36
Inventor 张春平石运国
Owner 蒙阴县桃墟镇中心学校
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