| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Seventh Grade Biology Volume 2 | pptx | 6 MB |
"Human Blood Circulation" PPT courseware
Description
"Human Blood Circulation" PPT courseware
Part One: Introduction of New Course
When people are sick, they need injections of drugs. So how do the drugs injected through injections flow through the human body and reach the disease focus?
learning target
1. Outline the components of the blood circulation system and describe the processes of systemic circulation and pulmonary circulation.
2. Explain the significance of blood circulation in the human body.
3. Tell what blood pressure, hypertension and hypotension are.
Human body's blood circulation PPT, part 2: human body's blood circulation
The heart beats continuously, causing blood to circulate in the network of tubes composed of the heart and all blood vessels. This process is blood circulation.
Think and discuss
How does blood flow through different blood vessels?
Within the capillaries, the red blood cells in the blood pass through in a single file;
Blood flow in arteries is from main blood vessels to branch blood vessels;
Blood flows in veins from branch vessels to main vessels.
Human blood circulation PPT, the third part: blood pressure
Blood pressure: In blood circulation, the lateral pressure of blood on the arterial wall is called blood pressure.
Generally speaking, blood pressure refers to the arterial blood pressure of the systemic circulation.
Use a sphygmomanometer to measure at the brachial artery in the upper arm
How to express blood pressure
When the ventricle contracts, the highest value to which blood pressure rises is called systolic blood pressure.
When the ventricles relax, the lowest value to which blood pressure drops is called diastolic blood pressure.
Prevention of high blood pressure
Pay attention to physical exercise
Control excessive intake of sugar and fat and eat more fresh vegetables and fruits
Don’t smoke, don’t drink alcohol, and limit salt intake, etc.
Human blood circulation PPT, part 4: feedback in class
1. The organ that connects the two circulation pathways of systemic circulation and pulmonary circulation is ( )
A. Lungs B. Aorta
C. Heart D. Capillaries
2. Blood ejected from the left and right ventricles ( )
A. All are arterial blood B. All are venous blood
C. Venous blood and arterial blood in order D. Arterial blood and venous blood in order
3. The pathway of systemic circulation is ( )
A. Left ventricle, aorta, capillary network, superior and inferior vena cava, right atrium
B. Right ventricle Superior and inferior vena cava Capillary network Aorta Right atrium
C. Left ventricle Superior and inferior vena cava Capillary network Aorta Left atrium
D. Left ventricle, aorta, capillary network, superior and inferior vena cava, left atrium
4. The blood vessel communicating with the right atrium is ( )
A. Superior and inferior vena cava B. Pulmonary veins
C. Aorta D. Pulmonary artery
Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, human blood circulation PPT download, .PPT format;
For more information about the PPT courseware "Blood Circulation of the Human Body", please click the "Blood Circulation of the Human Body" ppt tag.
"Human Blood Circulation" PPT:
"Human Blood Circulation" PPT Part One Content: New Lesson Introduction The total length of blood vessels is about 96,000 kilometers, and the circumference of the earth is 40,000 kilometers. Learning objectives 1. Be able to distinguish between arteries, veins and capillaries, explain the functions of different types of blood vessels, and the functions appropriate to their functions..
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Update Time: 2024-07-01
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