"The movement of animals depends on certain structures" PPT

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"The movement of animals depends on certain structures" PPT

Part One Content: Learning Objectives:

1. Give examples of animal movement structures

2. Give examples to illustrate the composition and function of the locomotor system of vertebrates

animal movement structure

What are the locomotion structures of single-celled animals?

What are the locomotor organs of multicellular animals?

fish fins

Most fish have dorsal fins, pectoral fins, pelvic fins, anal fins, and tail fins, which are the movement organs of fish.

butterfly wings

Insect wings develop from lateral dorsal leaves that expand to both sides. Insect wings are very flexible and can be folded on the back of the body when not in use. The wings are generally triangular in shape.

rabbit feet

Rabbits have shorter front legs and longer hind legs.

turtle limbs

Their limbs are very short, and there is a membrane between their toes that they rely on for swimming.

The movement of animals depends on a certain structure PPT, part two: the movement system of vertebrates

1. What are vertebrates?

The most distinctive feature of vertebrates is their back spine.

2. What are the components of the locomotor system of vertebrates?

The locomotor system of vertebrates consists of three parts: bones, bone connections (joints) and skeletal muscles.

bone connection

Bone connections are an important part of the locomotor system.

Human bones are connected to each other by connective tissue, cartilage or bone.

From the connection form, it can be divided into two types: direct connection (immovable connection) and indirect connection (movable connection, joint).

skeletal muscle

Muscles attached to bones are called skeletal muscles, also called striated muscles. People can control it and feel its movement, such as the muscle tissue of our arms, legs, and face.

The movement of animals depends on a certain structure PPT, the third part: training to meet standards

1. There are many animals that rely on special organs to fly and glide. Among the following animals, the flight organs are different from other animals ( )

A. Foot moth B. Butterfly C. Locust D. Bat

2. What controls skeletal muscles to contract is ( )

A The blood vessels inside the muscle B The tendons at both ends of the muscle

C Nerves distributed by muscles D Connective tissue membrane outside muscles

3. When people perform elbow flexion movements, the muscles that contract to cause movement are mainly ( )

A Biceps brachii B Triceps brachii C Contractor muscle D Dlaxator muscle

Analyze how the biceps and triceps coordinate in the following movements?

①Two classmates wrenches

① The biceps brachii contracts and the triceps brachii relaxes at the same time

②The process of pushing out the shot put

②The biceps relax and the triceps contract at the same time

③Carry a bucket of water

③All shrink

④Hands hang naturally

④ All are relaxed

Keywords: Jiangsu Education Edition eighth grade biology PPT courseware free download, animal movement depends on a certain structure PPT download, .PPT format;

For more information about the PPT courseware "The Movement of Animals, the Movement of Animals Depends on a Certain Structure," please click the "Movement of Animals, PPT, The Movement of Animals Depends on a Certain Structure," PPT tag.

"The movement of animals depends on certain structures" PPT courseware:

"The movement of animals depends on certain structures" PPT courseware Part One: Animal Movement Organs Discussion: What are the movement structures of single-cell animals? What are the locomotor organs of multicellular animals? The locomotion organ of single-celled organisms. Amoeba relies on pseudopods to move..

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Update Time: 2024-10-07

This template belongs to biology courseware Jiangsu Education Edition 8th Grade Biology Volume 1 industry PPT template

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