"Bone, Joint and Muscle" Our Body PPT

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"Bone, Joint and Muscle" Our Body PPT

Part 1: Observe the movements of the upper limbs

Pick up the dumbbell on the ground with your left hand and slowly move it to your chest.

Feel how the left upper limb moves during the whole process of this movement?

Repeat the above actions, and during exercise, touch different parts of the arm with your right hand to feel how the bones, joints and muscles move and change.

Bones, joints and muscles PPT, part 2: recording our observations

Draw an outline of your hand and arm on a recording paper. Label the bones, joints, and muscles on the outline.

Think about it: How are bones, joints, and muscles connected?

Draw the movement changes of joints, bones, and muscles based on your feelings.

When bending the elbow: the upper muscles contract

The muscles below relax

When extending the elbow: the upper muscles relax

The muscles below contract

The upper bones basically don’t move, and the lower bones rotate around the joints.

There is a framework inside the human body, which is composed of bones. An adult's body has 206 bones. Bones have five main functions: shaping the body, supporting the body, moving, protecting internal organs, producing blood cells, and storing certain substances needed by the body.

Each two small bones are connected by a joint. With joints, bones can move in different ways. Joints can be divided into two categories: fixed joints and movable joints.

There are approximately 600 muscles in the human body, and they have different functions. There are three types of muscles in the human body: skeletal muscle, smooth muscle, and cardiac muscle.

Skeletal muscles are the muscles attached to bones that provide the force to move the bones.

Smooth muscle Contains smooth muscle on the inside of some internal organs, such as the stomach wall and blood vessels.

The myocardium is located in the heart. The myocardium never gets tired and can continue to contract.

Keywords: Free download of Chinese PPT courseware for the first volume of the fourth grade of the textbook version, PPT download of bones, joints and muscles, PPT download of our body, .PPT format;

For more information about the PPT courseware "Our Body, Bones, Joints and Muscles", please click on the "Our Body ppt, Bones, Joints and Muscles ppt" tag.

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Update Time: 2024-07-12

This template belongs to science courseware Fourth Grade Science Volume 1, Textbook Edition industry PPT template

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