"Animal Movement" Animal Movement and Behavior PPT Courseware 2

"Animal Movement" Animal Movement and Behavior PPT Courseware 2

Main characteristics of mammals:

(1) Hair on body surface;

(2) Viviparous, lactation;

(3) Teeth are differentiated into incisors, canines and molars.

Scenario setting

What are these animals doing?

Predation, courtship, migration

Why do they do this?

To survive and reproduce

think about it

What structures do animals rely on to complete various movements?

How do animals' motor organs complete various actions?

The movement of animals depends on certain

focus focus

Animal movement is a specific manifestation of animal behavior, and animal movement depends on a certain body structure, and movement is mainly completed by the movement system.

Give examples of which parts of the human body have joints.

Upper limbs: shoulder joint, elbow joint, wrist joint, finger joint

Lower limbs: hip joints, knee joints, ankle joints, toe joints

Strengthen physical exercise

Can make our joints stronger and more flexible!

Dislocation - the joint head slipping out of the socket

First Aid - After a dislocation occurs, stop moving and ask a doctor to reset the joint immediately.

How should it be protected?

Protective measures include fully preparing for exercise, exercising at an appropriate intensity, and wearing wrist and knee pads, etc.

generation of movement

When skeletal muscles contract under stimulation from nerves, they pull the bones around the joints, causing the body to move. However, skeletal muscles can only contract and pull the bones but cannot push them apart. Therefore, the muscles connected to the bones are always moved by two groups of muscles in cooperation with each other.

meaning of movement

Think: What is the significance of an animal’s movement to its survival?

It is beneficial for animals _________, _______, _________ and _______ to adapt to complex and changing environments.

think:

In the following description of skeletal muscles, which one is incorrect ( )

A. The tendons at both ends are fixed to different bones.

B. Consists of tendons and muscle bellies

C. Muscles can contract when stimulated

D. The tendons at both ends are fixed to the same bone

Thinking questions

The movement of mammals is not only accomplished by the movement system, but also requires the control and regulation of ______. At the same time, it also requires the cooperation of ______, ______, ______, etc. to provide energy for the movement of the movement system.

Some people compare muscles to the ropes that pull a car, because the ropes can only pull forward but not push back. If you let the car go backwards, you need to tie another rope behind the car. Do you think this metaphor makes sense? Tell us your reasons.

There is some truth to the metaphor.

Skeletal muscles can only contract and pull the bones but cannot push them apart. Therefore, the muscles connected to the bones are always moved by two groups of muscles in cooperation with each other.

practise

1. The locomotor system of mammals is ( )

A muscles B bones C muscles and bones D joints

2. What attaches skeletal muscles to bones is ( )

A muscle belly B tendon C blood vessel D muscle cell

3. Changes in the position of bones produce movement. The reason for movement is ( )

A The result of bone's own movement B The result of skeletal muscle contraction and relaxation

C The result of changes in joint position D The result of changes in skeletal muscle position

4. Which of the following is correct ( ).

A. Skeletal muscle consists of two parts: the tendon in the middle and the muscle bellies at both ends.

B. The movement of bones depends on the pulling of skeletal muscles

C. Animal movement is accomplished only by the control and regulation of the motor system and nervous system.

D. All animals have bones in their bodies

Class exercises

1. The structure that connects skeletal muscles to bones is ( )

A. joint b. ligament

C. Joint capsule D. tendon

2. Paralysis of skeletal muscles in a certain part of the human body may be caused by ( )

A. Skeletal muscle fatigue

B． Damage to the nerves that control skeletal muscles

C. chronic lack of exercise

D. Damage to certain muscle fibers of skeletal muscles

3. Mammals need energy during exercise. The main sources of energy are ( )

①Respiratory system ②Reproductive system ③Nervous system ④Digestive system ⑤Endocrine system ⑥Circulatory system

A. ①②④ B. ①③⑤

C. ①④⑥ D. ②③⑤

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