"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 3

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"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 3

Preview thinking

1. Do you know who discovered the blood type and when?

2. After we complete the blood test in the hospital, the doctor will tell us our blood type. Do you know your blood type?

3. What are the common types of ABO blood group system?

4. Why do you need to check your blood type first when donating blood?

5. What are the principles of blood transfusion?

6. What blood type can be transfused in small amounts to people of the other three blood types?

7. What blood type can a person receive a small amount of type A blood or type B blood?

8. How much blood volume does an adult have roughly equal to his/her body weight? What is your weight? If calculated in adult proportions, what is your approximate blood volume?

9. For a healthy person, when the blood loss exceeds the blood volume at one time, the life will be in danger?

10. What symptoms will occur if the blood loss exceeds 800mL at a time?

11. How many milliliters of blood can a healthy adult donate each time?

1. Discovery of blood types

In the 17th century, after Harvey discovered blood circulation, humans began to try blood transfusions. In 1667, the French philosopher Denis and the surgeon Emmerez transfused 250 ml of sheep blood to a patient. This was the first blood transfusion recorded in human history. Of course, it was unsuccessful. There was a tragedy of patient death.

In 1829, British doctor Brundle completed the first human-to-human blood transfusion experiment. However, the results of subsequent trials were still disappointing. Most patients died and only a few recovered. What was the reason?

2. Transfusion of same type of blood

1. The principle of blood transfusion: the principle is to transfuse blood of the same type

2. Blood transfusion relationship table:

△Note: In case of massive blood transfusion, same type of blood transfusion is still required

blood transfusion relationship diagram

In critical situations, blood transfusions of different blood types can be performed. At this time, it is necessary to consider whether the agglutinogens in the donor's red blood cells will react with the agglutinins in the recipient's serum, causing red blood cell agglutination.

Transfusion of heterotype blood is only done in emergency situations when blood of the same type is not available. People with type O blood are "universal blood transducers"; people with type AB blood are "universal blood recipients"

3. Blood volume and blood transfusion

1. Adult blood volume: roughly equivalent to 7%-8% of the person’s body weight

2. If the blood loss exceeds 1200-1500ml at one time, your life will be in danger. If the blood loss exceeds 800-1000ml at one time, you will have symptoms such as dizziness, heartbeat, dark eyes, and cold sweats.

3. Healthy adults donate 200-300ml of blood each time, and they will be replenished and recovered in 2-3 weeks, which will not affect their health.

4. Since 1998, my country has implemented a voluntary blood donation system and encourages healthy citizens aged 18-55 to donate blood voluntarily.

Component transfusion - In clinical practice, different blood cell components or plasma are often selected and transfused into the patient according to the needs of the patient's condition. Transfusion components can be plasma, platelets, white blood cells, and red blood cells.

Connect the following patients with the blood components that should be transfused:

A. Patients with severe anemia a. Plasma

B. People with extensive burns on the body b. Concentrated platelet suspension

C. Patients with external bleeding who are difficult to stop bleeding c. Concentrated red blood cell suspension

test you

1. In addition to blood transfusion, what other uses does ABO blood type have? Please give an example.

2. my country currently implements a voluntary blood donation system. Please tell me your reasons for participating in voluntary blood donation.

3. For patients with severe anemia, extensive burns or severe thrombocytopenia, what blood components do you think should be transfused to them? Why?

Extend and expand

Besides being used for blood transfusions, what else are ABO blood types used for?

Answer: ABO blood type is related to heredity, so it is often used in forensic medicine for paternity testing and case detection.

Keywords: Teaching courseware on the transportation of substances in the human body, teaching courseware on blood transfusion and blood types, Biology PPT courseware for the second volume of the seventh grade of the New People's Education Edition, download of the seventh-grade biology slide courseware, downloading PPT courseware on the transportation of substances in the human body, blood transfusion and blood types PPT Courseware download, .ppt format

For more information about the "Transportation of Substances in the Human Body, Blood Transfusion and Blood Types" PPT courseware, please click on the "Transportation of Substances in the Human Body ppt, Blood Transfusion and Blood Types" ppt tag.

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 5:

"Blood Transfusion and Blood Types" Transport of Substances in the Human Body PPT Courseware 5 Learning Objectives: 1. Discovery of blood types; 2. General principles of blood transfusion; 3. Feasibility and importance of blood donation. People are injured and bleeding heavily in natural disasters. What would you do as an emergency doctor?

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 4:

"Blood Transfusion and Blood Types" Transport of Substances in the Human Body PPT Courseware 4 Discovery of Blood Types In the 17th century, after Harvey discovered blood circulation, humans began to attempt blood transfusions. In 1667, French philosopher Denis and surgeon Emerez transfused 250 ml of sheep blood into...

"Blood Transfusion and Blood Type" Transportation of Substances in the Human Body PPT Courseware 2:

"Blood Transfusion and Blood Type" Transport of Substances in the Human Body PPT Courseware 2 Learning Objectives 1. Know the blood volume of the human body and have a preliminary understanding of blood transfusion. 2. Master the ABO blood type. 3. Outline the principles of safe blood transfusion and the significance of voluntary blood donation. 4. Be able to combine blood transfusion examples in life and recognize...

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Update Time: 2024-06-28

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

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