"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware

Description

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware

Has the volume of the thorax really changed? Do we feel it is accurate?

Bust circumference difference = Bust length at the end of deep inhalation - Bust length at the end of deep exhalation

1. Complete the following questions based on the picture on the right (schematic diagram simulating the movement of the diaphragm).

(1) What is the simulated state of the model at this time (inhaling or exhaling).

(2) A in the picture represents _______, B in the picture represents _______, and C in the picture represents _______. D in the picture represents _______, and E in the picture represents _______.

(3) Pull down E with your hand, the small balloon _______, which represents the _______ process and explains ______________.

(4) Push E with your hand, the small balloon _______, which means _______.

(5) This model cannot demonstrate the changes in the _______ diameter of the thorax, so it cannot fully demonstrate the breathing movement.

hint

1. There can be only one control variable;

2. Dust counts up and not down, left and not right;

3. In order to reduce errors, repeating groups should be set up.

3. Raise questions: (Group discussion)

Make assumptions:

Make plans: time, place, etc.

5. The meaning of breathing

Organic matter (storage of energy) + oxygen → carbon dioxide + water + energy

The meaning of breathing: Inhaling oxygen continuously decomposes organic matter in the body and releases energy to supply the body's needs for various physiological activities and maintaining body temperature; at the same time, it can continuously expel carbon dioxide produced in the body from the body.

Use your brain

Thinking 1. Which aspect of breathing is impaired in drowning death? Before giving artificial respiration to a drowning victim, why should we first remove dirt from the mouth and nose and control the water (as shown on the right)

It is the first step in breathing - the ventilation of the lungs is obstructed, eventually leading to systemic hypoxia and drowning;

Ensure that the respiratory tract is unobstructed, so that the accumulated water in the lungs (and stomach) can flow out, which is beneficial to the ventilation of the lungs.

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For more information about the PPT courseware "Human Respiration Occurs in the Gas Exchange in the Lungs", please click on the PPT tag of "Human Respiration PPT Occurs in the Lungs in Gas Exchange".

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 5:

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 5 1. Gas exchange between the lungs and the outside world (ventilation of the lungs) Breathing Movement Inhalation Movement Exhalation Movement Press both sides of the chest with your hands, and inhale deeply. How do you feel your ribs move? How does the chest change...

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 4:

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 4 1: Gas Exchange between the Lungs and the Outside World Learning Objective: Summarize the gas exchange process between the lungs and the outside world by measuring the chest circumference difference, etc. Experimental measurement of chest circumference difference to explore whether the thoracic volume changes during respiratory movement..

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 3:

"Gas Exchange Occurring in the Lungs" Human Respiration PPT Courseware 3 1. Experience and thinking about gas exchange between the lungs and the outside world. First, place your hands lightly on both ribs, take a deep breath and feel the relationship between the movement of the ribs and the changes in the thorax; then Place your hands gently on your sternum and take a deep breath.

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Update Time: 2024-12-02

This template belongs to biology courseware People's Education Press seventh grade biology book volume 2 industry PPT template

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