"Human Immunity" PPT courseware

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"Human Immunity" PPT courseware

Part One: Teaching Objectives

Master the knowledge of the body’s three lines of defense to defend itself.

Understand the concept and function of immunity, and distinguish between non-specific immunity and specific immunity of the human body.

Explain the meaning of planned immunization

Human immunity PPT, Part 2: The human body’s three lines of defense

1. The composition and functions of the three lines of defense

2. Definition and interaction of antigens and antibodies

3. Definition of non-specific immunity and specific immunity

"Data Analysis" Discussion (1)

Why do germs die quickly when applied to clean skin? What does this say about the function of skin?

The germs applied on clean skin are killed by the secretions of the skin: this shows that the skin has the function of killing germs.

"Data Analysis" Discussion (2)

Under what circumstances can germs invade the human body?

When a person's body is weak, their immunity is reduced, or when their skin is injured, germs can invade the human body.

non-specific immunity

Source: The natural defense function gradually established by human beings during the process of evolution.

Characteristics: Everyone is born with it. It does not target a specific pathogen, but has a defensive effect on a variety of pathogens. It is also called innate immunity. (Non-specific)

specific immunity

Source: The acquired defense function gradually established by the human body after birth.

Characteristics: It is produced after birth and only works against a specific pathogen or foreign body. It is also called acquired immunity (specificity).

Human immunity PPT, the third part: the function of immunity

1. Concept

2. Treat the immune function dialectically

(1) Beneficial aspects

(2) Disadvantages

immunity concept

Immunity is a physiological function of the human body; the human body relies on this function to identify "self" and "non-self" components, thereby destroying and rejecting antigenic substances entering the body, such as pathogens, or damaged cells and tumors produced by the human body itself. cells, etc., to maintain the health of the human body.

Unfavorable aspects of immune function to the human body

1. Rejection of organ transplantation

2. Allergic reaction

3. Tumor cells

Thinking questions

1. There are a lot of pathogens in the space where we live, so why can we live healthily in such an environment?

2. We have all heard of organ transplantation. Can patients receive corresponding organs donated by any healthy person? Why?

3. What is the significance of regular vaccinations for students?

Human immunity PPT, part 4: planned immunization

1. Definition of vaccine

2. The concept of planned immunization

3. The significance of vaccination

vaccine

Biological products are usually made from killed or attenuated pathogens. After being inoculated into the human body, they can cause the human body to produce corresponding antibodies, thereby improving resistance to specific infectious diseases.

planned immunization

According to the occurrence patterns of certain infectious diseases, relevant vaccines are administered to the population in a planned manner according to scientific immunization procedures to improve the body's resistance to these infectious diseases and achieve the purpose of controlling and eliminating infectious diseases.

Human immunity PPT, Part 5: Self-testing

1. The following are the body’s first line of defense: ( )

A. The role of phagocytes B. The role of bacterium

C. Protective effect of skin D. Vaccination to prevent diseases

2. Different from other immune types ( )

A. Barrier effect of skin B. Bactericidal effect of lysozyme in tears and saliva

C. Phagocytosis of phagocytes D. Vaccination to prevent smallpox

3． Which of the following statements about antibodies is incorrect ( )

A. Antibodies are produced by lymphocytes

B. An antibody is a protein

C. One antibody can eliminate multiple antigens

D. Antibodies are produced after antigenic substances invade the human body

4． Which of the following statements is correct ( )

A. Immunity can only be acquired the day after tomorrow

B. Immunity is always beneficial to the human body

C. Immunity can only recognize "non-self" but not "self"

D. Immunity can sometimes be detrimental to the human body, such as allergic reactions

Keywords: Beijing Normal University Edition Biology PPT courseware for seventh grade volume 2 free download, human immunity PPT download, .PPT format;

For more information about the "Healthy Life Human Immunity" PPT courseware, please click the Healthy Life PPT Human Immunity PPT tab.

"Human Immunity" PPT teaching courseware:

"Human Immunity" PPT teaching courseware Part One: Introduction of new lessons There are many pathogens in the natural environment where people live. Once these pathogens invade the human body, they may cause diseases and damage people's health. Why can people survive in an environment where a large number of pathogens exist...

"Human Immunity" PPT courseware download:

"Human Immunity" PPT courseware download Part One: Situation Introduction There are many pathogens in the natural environment where people live. Once these pathogens invade the human body, they may cause diseases and damage people's health. Why can people survive in an environment where a large number of pathogens exist...

"Human Immunity" PPT download:

"Human Immunity" PPT Download Part One Content: New Lesson Knowledge Points Knowledge Point 1 Human immunity includes non-specific immunity and specific immunity 1. Non-specific immunity (1) Concept and characteristics Non-specific immunity is innate and is responsible for many types of immunity. Pathogens all work, but...

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Update Time: 2024-07-09

This template belongs to biology courseware Beijing Normal University Edition Seventh Grade Biology Volume 2 industry PPT template

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