"Animal Movement" Animal Movement and Behavior PPT Courseware 4

Description

"Animal Movement" Animal Movement and Behavior PPT Courseware 4

learning target

1. State the concept of animal behavior.

2. Describe the components of the mammalian locomotor system.

3. Give examples of the coordination and cooperation of bones, joints and muscles.

4. Outline the significance of exercise to animal survival.

Focus: The composition of the motion system and the structure and function of each component

Difficulty: The coordination and cooperation of bones, joints and muscles

Happy clicking

The series of activities performed by animals that are beneficial to their survival and reproduction are called animal behaviors.

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.

Exercise: Which of the following is not an animal behavior ( )

A. Cheetah hunting B. Bee collecting nectar

C, frogs lay eggs D, human heart beats

The difference between bone and bone

1. The upper limb bones are bones, because they are composed of many bones such as the ulna and the radius; the adult skeleton is composed of 206 bones connected in different ways.

2. A separate piece is a bone, such as humerus, ribs, etc.

bone connection

Inactive: such as the connection between skull bones.

Semi-mobile: such as the connection between vertebrae.

Movable (joints): such as the connection between the wrist bone and the ulna and radius.

joint

Characteristics of joints: 1. Flexible; 2. Firm.

The inner wall of the joint capsule can secrete synovial fluid, reduce friction, and lubricate the smooth and elastic articular cartilage. Articular cartilage can reduce the friction between the two bones and buffer the vibration during movement, so the joints are very flexible.

The joint capsule is made of tough connective tissue, and is also attached with many ligaments, which firmly connect two adjacent bones together, so the joint is very strong.

Life analysis

1. Which parts of the large crane are equivalent to the joints of animals?

The movable part of a large crane is equivalent to the joints of an animal, such as the part between the crane arm and the car body.

(2) The elbow joints, wrist joints of the upper limbs, and the knee joints and ankle joints of the lower limbs are all susceptible to injury.

(3) Be prepared to exercise with appropriate intensity and wear wrist and knee pads

2. Coordination of bones, joints and muscles

Self-realization

When the arms hang down naturally,

Biceps brachii ( ), triceps brachii ( ).

When lifting a bucket of water vertically with straight arms,

Biceps brachii ( ), triceps brachii ( ).

Thinking: What significance does the movement of animals have to the survival of animals?

Tip: Mammals rely on their limbs to support their bodies, and the bones move around the joints under the traction of muscles, allowing the body to complete various movements. Therefore, it has developed movement abilities, which is conducive to foraging and avoiding enemies, so as to adapt to complex and changeable environments.

Try your hand

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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Update Time: 2024-11-02

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 1 industry PPT template

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