Chapter 6: Support, Movement & Growth (Human Growth Pattern)

Content Standard:

Movement and Human Growth

Learning Standard:

Explain the pattern of human growth.

Compare and contrast the growth pattern between male and female.

Learning Activity:

Good morning everyone. Today we are going to learn about human growth pattern. Before we start, let us watch this video.

What is human growth?

Human growth is a process where changes occur in terms of size, total number of cells, weight, shape size and body function. 

It is permanent and irreversible process.

Human growth occurs to the whole body and is different according to the sex and age.

HUMAN GROWTH STAGE

Let us look at the human growth curve. What is the shape of the curve?

Is there any different of growth pattern between males and females? Now study this growth pattern.

Exercise:

1. State two parameters that can be used to measure the human growth rate.

2. Explain the shape of the growth curve for males and females.

3. Describe briefly the effect of diet on growth rate.

4. How can the growth rate be measured.

Answer in foolscap paper.

Submit your answer via the link below.

https://script.google.com/macros/s/AKfycbyfd7ziRJYsvUEOX04Y8B5d7OmFjavXwh_0z9xq39-juavW_Cw/exec

Note: Please write your name on your file image before you upload  the file/image.

References:

1. KSSM Science Textbook Form 4

2. https://www.slideshare.net/nirmalajosephine1/biology-form-5-chapter-4-46-growth-in-multicellular-organisms

3. https://www.youtube.com/watch?v=bPMeXUeAI1Y

Chapter 6: Support, Movement & Growth

Content Standard:
Movement and Human Growth

Learning Standard:
Explain the functions of joints and muscles in movement

Learning Activities:

Good morning students. Welcome back from your school holiday. We are going to continue our lesson about support, movement and growth. If you have your Science textbook with you, turn to page 128 - 129. Today we are going to learn about human movement and growth. 

In the previous lesson, you have learnt about human skeletal system. You also have drawn the human skeletal system. These are some of the best drawing of human skeletal system.

By Albright 4B

By Bethanysha 4B

By Vivian 4B

The skeletal system and muscles enable humans to move. Skeletal muscles contract and relax to produce movement. They act in pairs and in opposite direction to one another that is known as antagonistic muscles. 

Diagram 1: Antagonistic movement of muscles to bend and straighten the arm

This movement is very important because it enables humans to walk, jump, run, swim and etc. Now let us watch this video.

Now let's move on to the functions of joints and muscles in movement. The joint is the meeting place between two or more bones. There are two types of joint.

1. Immovable joint - joint that does not allow the limbs to move e.g joint at the skull

Diagram 2: Immovable skull joint

2. Moveable joint - joint that allows the limbs to move e.g hinge joint at the elbow

Diagram 3: Hinge joint

Now watch this video to understand more about hinge joint.

Exercise: 

Answer the questions below in a foolscap paper/ A4 paper. Please refer to your textbook/ reference book/ Internet or any sources to help you to answer this question.

1. Explain the antagonistic movement of muscles in the arm. 

2. Explain the function of ligament, synovial fluid and tendon at the joint.

3. Explain what are the causes of muscle cramps and ways to prevent it from happening.

Submit your answer via the link below.

https://script.google.com/macros/s/AKfycbyfd7ziRJYsvUEOX04Y8B5d7OmFjavXwh_0z9xq39-juavW_Cw/exec

Note: Please write your name on your file image before you upload  the file/image.

References: 

1. https://www.quora.com/How-do-agonist-and-antagonist-muscle-pairs-work-together-in-weight-lifting
2. https://www.eorthopod.com/eorthopodV3/index.php?ID=57dd4157f9f946ff9d8c512ba8a92e6b&disp_type=topic_detail&area=47&topic_id=34857ee6e5e248055b714e7077a732b6
3. https://biology.homeomagnet.com/bone-joint/
4. https://www.youtube.com/watch?v=R9LhQxnOqTQ
5. https://www.youtube.com/watch?v=u8ni-b8uyzU