"Blood Circulation" PPT download

Description

"Blood Circulation" PPT download

Part One: Learning Objectives

1. Distinguish between arteries, veins and capillaries, explain the functions of different types of blood vessels, and their structural characteristics suitable for their functions.

2. Describe the structure and function of the heart, and explain the characteristics of the heart and its functions.

3. Describe the pathways of blood circulation, briefly describe the changes in blood components during blood circulation, and explain the significance of blood circulation in the human body.

Scenario import

Blood circulation refers to the circulatory flow of blood in the heart and blood vessels throughout the body. Why can blood flow continuously in a certain direction? This is determined by the heart and blood vessels, which are the components of the blood circulation system.

Blood circulation PPT, part 2 content: classroom activities

Activity: Use a microscope to observe various blood vessels

Purpose requirements:

Identify different types of blood vessels and describe the structural characteristics of each type of blood vessels.

Materials and tools:

Microscope. Human or mammalian blood vessel sections. Capillary mounts

Method steps:

1. Observe the cross-section of blood vessels under a microscope, and distinguish and compare the differences in wall structure of arteries and veins.

2. Observe capillary loading.

discuss:

How the structural characteristics of different blood vessels adapt to their respective kinetic energies.

Blood circulation PPT, part 3 content: classroom demonstration

Demo Observe the Heart

Method steps:

1. Observation of the shape of the heart:

Identify the up, down, left, right, front and back positions of the heart.

Pinch the atrial and ventricular walls to feel the thickness of the walls.

2. Observation of the internal structure of the heart:

Identify the four cavities

Observe the connection relationship between the four cavities

Find the blood vessels connected to the four chambers

Blood circulation PPT, part 4: compliance testing

1. Distributed in the deep layers of the body, the tube wall is thick and elastic, and the blood flow speed in the tube is fast ( )

A. arteries B. veins

C. Capillaries D. Arteries and veins

2. Which of the following statements about capillaries is incorrect ( )

A. Large in number and widely distributed in the human body; it is the place where blood and tissue cells exchange substances.

B. The tube wall is extremely thin, consisting of only one layer of epithelial cells, and the blood flow in the tube is extremely slow.

C. is a blood vessel that connects the smallest arteries and veins

D. Its inner surface has valves that prevent blood from flowing back

3. The most developed part of the heart muscle is ( )

A. Left atrium B. Right atrium C. Left ventricle D. Right ventricle

4. The power organ of blood circulation is ( )

A. arteries B. veins C. capillaries D. heart

5. The blood vessel connected to the right atrium of the heart is ( )

A. Pulmonary vein B Superior and inferior vena cava C. Aorta D. Pulmonary artery

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

For more information about the PPT courseware "Material Transport and Blood Circulation in the Human Body", please click the Material Transport and Blood Circulation in the Human Body ppt tag.

"Human Blood Circulation" PPT courseware:

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"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..

"Blood Circulation" PPT courseware:

"Blood Circulation" PPT courseware Part One: The pipes through which blood flows. Arteries: The blood vessels that carry blood from the heart to all parts of the body. Features: The tube wall is thick and elastic. The blood flow in the tube is fast. It is mostly distributed in deeper parts of the body. Press it on the hand with your fingers..

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Update Time: 2024-09-09

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

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