"Human Movement System and Health Care" PPT

Description

"Human Movement System and Health Care" PPT

Part 1: Overview of the motion system

composition

Bone————Lever

Bone connection - the fulcrum of movement

Skeletal muscles - the driving force for movement

Function: support, protection and movement

Are bones bones?

The human frame composed of bones and bone connections is called skeleton.

The human skeleton is composed of 206 bones connected by bones.

Human locomotor system and health care PPT, part 2: bones

1. Function of bones:

Support body weight

Constituting human body support

hematopoiesis

Protect internal organs

Reserve calcium and phosphorus

2. Bone

(1) Classification of bones

Skull (skull), trunk bones, limb bones

1. What organ does the skull mainly protect?

2. Can you name the bone in the picture?

3.Spine

1. The human spine is made up of many vertebrae.

2. The human spine has four physiological curvatures when viewed from the side.

These physiological bending make the human body in a state of upright and make the spine as elastic like spring. This increases the stability of the human body when standing, walking and exercising, reduces concussion to the brain, and helps maintain body balance.

4. Classification of bone:

(by form)

long bone: long tube-shaped

Short bones: Cuboidal

Flat bone: plate-shaped

Irregular bones: various

Human Movement System and Health Care PPT, Part 3: Thoughts and Discussions

1. Which parts of the human body have joints?

2. Which joints are easily injured when playing sports?

3. How should it be protected?

1. Shoulder joint, elbow joint, finger joint, hip joint, knee joint, ankle joint, wrist joint

2. Elbow joints, knee joints, ankle joints, and wrist joints are prone to injuries.

3. Do preparatory activities before exercise; use joint protective gear

Human movement system and health care PPT, part 4: body movement

Any action of the human body is not completed by one skeletal muscle independently, but is completed by multiple groups of skeletal muscles cooperating with each other under the regulation of the nervous system.

(1) It is formed with bones as levers, joints as fulcrums, and skeletal muscle contraction as power.

(2) When skeletal muscles contract, the traction bones move around the joints, thereby producing movement. This process is completed under the control of the nervous system.

Skeletal muscles are mostly attached around joints, and a movement is usually coordinated by multiple skeletal muscles.

Human locomotor system and health care PPT, part 5: health and health care

1. During adolescence, bones are highly elastic and easily deformed. If you do not pay attention to the correct posture of sitting, standing, walking, and lying down, over time, the bones will deform, such as hunching, spine bending to one side, etc., which will cause oppression of internal organs. affect health.

2. Regular physical exercise can thicken the joint capsule and ligaments, thereby strengthening the joint's firmness. Physical exercise can also strengthen the stretch of joint capsules, ligaments and muscles around joints, thereby increasing the range of joint activities and making them more flexible. During sports and production work, if you exert too much force or accidentally fall down, the joint head may come out of the joint socket and cause dislocation. The dislocated area often suffers from swelling and pain. At this time, you should avoid moving the injured joint and ask a doctor for treatment and reset as soon as possible.

3. Physical exercise can also promote the growth and development of the body, develop muscles, build strong bones, and enhance physical fitness. Adolescence is the peak period of growth and development for teenagers. Regular physical exercise can stimulate the division of cells and osteoblasts in the cartilage layer, promoting bone growth and thickening.

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"Human Movement System and Health Care" PPT courseware:

"Human Movement System and Health Care" PPT courseware

Part 1: Overview of the motion system

composition

Bone——lever

Bone connection - the fulcrum of movement

Skeletal muscles - the driving force for movement

Are bones bones?

Bones and bone connections...

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Update Time: 2024-11-22

This template belongs to science courseware Zhejiang Education Edition Ninth Grade Science Volume 2 industry PPT template

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