"Gas Exchange between the Human Body and the External Environment" PPT Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
| 文件名 如何下载使用 | 下载次数 | Download Points | 下载地址 |
|---|---|---|---|
| "Gas Exchange between th... | 20900次 | 0.00 | Free Download |
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Gas Exchange between the Human Body and the External Environment" PPT is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Gas Exchange between the Human Body and the External Environment" PPT, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view:Please click to see
Authoritative PPT Summary
"Gas Exchange between the Human Body and the External Environment" PPT
Part One: Introduction of New Course
1. The baby in the picture on the left is born and needs to breathe when it cries for the first time.
2. The diver in the picture on the right should carefully check his breathing apparatus before entering the water.
learning target
1. Describe the components of the human respiratory system.
2. Explain the relationship between the structure and function of the respiratory system.
3. Explain the structural characteristics of alveoli that are suitable for their functions.
Gas exchange between the human body and the external environment PPT, Part 2: Composition of the respiratory system
Observe the schematic diagram of the respiratory system and describe the components of the respiratory system
Nose - the beginning of the respiratory tract
Nose hairs – block dust
Mucous membranes – clean and moist
Capillaries in mucous membranes – warm inhaled air
trachea and bronchi
(1) Use C-shaped cartilage as a scaffold to allow air to flow smoothly
(2) Mucus glands secrete mucus:
Clings to dust; moist, clean air
(3) The cilia on the inner surface of the tube wall swing, and dust particles, germs and mucus (phlegm) are discharged through coughing.
Gas exchange between the human body and the external environment PPT, Part 3: Cooperation and communication
What organs make up the passage of gas into and out of the lungs? Why do you think the air entering the lungs becomes clean, warm, and moist?
The channels for gas to enter and leave the lungs are composed of the nose, pharynx, larynx, trachea, bronchi and other organs
Lung structure and function
The lungs are the main organ of the respiratory system and the place where gases are exchanged
Location: The lungs are located in the chest, one on each side. The left lung is divided into two lobes, and the right lung is divided into three lobes.
Features of the lungs suitable for gas exchange:
1. The number of alveoli is large and the total area is large.
2. There are abundant capillaries outside the alveoli. The capillary walls are very thin and composed of a layer of epithelial cells.
3. The alveolar wall is very thin and consists of only one layer of epithelial cells.
Gas exchange between the human body and the external environment PPT, Part 4: Feedback in class
1. In the following structure, the common channel for gas and food is ( )
A. Oral cavity B. Pharynx C. Larynx D. Esophagus
2.The main organ of the respiratory system is ( )
A. Nasal cavity B. Lungs C. Larynx D. Trachea
3. Which of the following is a characteristic of alveoli suitable for gas exchange ( )
A. The alveolar wall is composed of a layer of epithelial cells
B. There are many alveoli and the total area is large
C. There are capillaries wrapped around the alveoli.
D. All three of the above
Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, gas exchange between the human body and the external environment PPT download, .PPT format;
For more information about the PPT courseware "Gas Exchange between the Human Body and the External Environment", please click on the Gas Exchange between the Human Body and the External Environment ppt tag.
"Gas Exchange between the Human Body and the External Environment" PPT courseware:
The content of the first part of the PPT courseware "Gas Exchange between the Human Body and the External Environment": New lesson introduction: The child did not cry after birth. The doctor was so anxious that he slapped his butt and made him cry. As a result, the father of the child took the doctor to court. Child abuse! Please let the students decide...