"Flowing Tissue-Blood" Transport of Materials in the Human Body PPT Courseware 3

Description

"Flowing Tissue-Blood" Transport of Materials in the Human Body PPT Courseware 3

Learning objectives of this section:

1. Describe the components of blood and the main functions of each component.

2. Ability to identify red blood cells and white blood cells in human blood smears based on the shape and number of blood cells.

3. Ability to interpret routine blood test sheets based on the functions of three types of blood cells.

blood composition

Guess, why do we add sodium citrate solution to the test tube first?

Take a look, what's the phenomenon? How many layers are there? What color are each? What is the approximate volume ratio of each part? Why stratification?

Think about it, how many parts might blood consist of?

Observing a permanent smear of human blood using a microscope

1. In the permanent smear of human blood you observed, which type of blood cells has the most?

2. Which blood cell is the largest?

3. Which blood cell has a nucleus?

4. Why are platelets difficult to observe?

Apply what you learn

1. If a person’s red blood cell count and hemoglobin content are lower than normal, what diseases will result?

2. What symptoms will the patient have?

3. Based on the composition of hemoglobin, what measures can be taken to alleviate these symptoms?

Classroom training

1. Which of the following groups contains substances that should not be present in plasma ( )

A. Water, digestive enzymes, inorganic salts, platelets

B. Vitamins, glucose, inorganic salts

C.Amino acids, carbon dioxide, plasma proteins

D.Oxygen, urea, uric acid

2. Arterial blood is bright red mainly because it contains more ( )

A. Red blood cells B. Hemoglobin combined with oxygen

C.Nutrient D.Carbon dioxide

3. Use a microscope to observe the blood smear. The largest number of cells seen in the same field of view is ( )

A. White blood cells B. Red blood cells C. Platelets D. Lymphocytes

4. The group of mature blood cells in the human body that does not have a nucleus is ( )

A. Red blood cells and white blood cells B. Platelets and white blood cells

C. Platelets and red blood cells D. Blood cells and red blood cells

5.Anemia refers to ( )

A. Too little blood in the human body

B. Too few nutrients in the blood

C. Too few white blood cells or platelets in the blood

D. The number of red blood cells in the blood is too low, or the hemoglobin content in the red blood cells is too low.

discuss

What components are mainly lost in the blood when the human body sweats profusely or has severe diarrhea?

What methods are usually used to replenish lost ingredients?

When sweating a lot, the blood mainly loses water and some inorganic salts.

The lost ingredients are usually replenished by drinking light salt water.

In severe diarrhea, the body mainly loses water, saline and glucose.

Usually drinking water, supplementing with appropriate amounts of inorganic salts, and intravenous drip (or oral administration)

Glucose is used to replenish lost components in the blood.

think

1. If the white blood cell value on the test sheet is higher than the normal value, what does that mean? How should it be treated?

2. What is the pus that comes out of a suppurated wound?

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

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Update Time: 2024-10-05

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

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