Let's try some New Words:
External - present outside-வெளிப்புறம்:
Internal - present inside- உள்:
Organ- Body part- அங்கம்:
External Organs
It's located on the outside of the body.
We can see them
Internal Organs
It's located on the inside of the body.
We cannot see them
Nervous System
Nervous System
CENTRAL NERVOUS SYSTEM consists of:
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Brain
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Spinal Cord
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Nerves
BRAIN
Nerves
Nerves are like wires that send the signals between different parts of the body
Spinal Cord
Spinal Cord is a long tube-like structure filled with a bundle of nerves
Curiosity Corner:
Have you ever wondered why we breathe heavily when we run?
Watch the Video on the right to understand.
Let's Revise
Test Yourself
Draw the inhalation flow chart and sent it to your Sir/Miss.
Find Out
What happens when we breathe-in Carbon Dioxide and other gases? Debate it with your friends and find out.
Curiosity Corner:
Have you ever wondered what happens when we eat?
To understand watch the video on the right.
Tooth Anatomy
Curiosity Corner:
Have you ever wondered how does our body remove waste?
To understand watch the video on the right.
Test Yourself
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How many kidneys do we have?
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What does the kidney do?
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The kidneys are ______ shaped.
Find the answers for the above and send it to your Sir/Miss
Curiosity Corner:
Have you ever wondered Why do we brush our teeth?
To understand watch the video on the right.
Activity
1. Can you count the number of teeth?
2. Draw your teeth
Complete the activity and send it to your teacher.
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Activity 2
Draw the human body and label the different systems.
An organ system is a group of organs that work together as a biological system to perform one or more functions. Each organ does a particular job in the body and is made up of distinct tissues.
Clues
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The part of the body above the neck
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The body part of hearing
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The body part that helps you write
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The body part that helps you smell
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The body part that helps you walk
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CLICK HERE to play the Memory Game
Watch the Video to Understand functions of the Nervous system:
Test Yourself
Parts of a Brain:
Forebrain / Cerebrum - Thinking
Midbrain / Cerebellum - Body balance
Hindbrain / Medulla Oblongata - Controls breathing and heartbeat
Watch the video on the left to understand the different parts of the BRAIN
The respiratory system consists of
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Airways to carry air between the lungs and surroundings
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Muscles that help air move in and out
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Lungs
Functions of the Respiratory system
Breathe - in / Inhale
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We take in Oxygen
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The lungs become big
Breathe - out / Exhale
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We give out Carbon Dioxide
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The lungs become small
Watch the video to understand the functions of Respiratory System:
Activity Corner
Activity-1
HOW DO LUNGS WORK?
MAKE A MODEL LUNG- CLICK HERE
Activity-2
How many times do you breathe in One minute? Count and send the answers to your Sir/Miss.
What is Stomach?
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The stomach is a ‘J‛ shaped bag found below the lungs.
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It breaks down food items
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It gives us energy.
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It contains special juice to breakdown food into energy.
Watch the video to understand the functions of Digestive System:
Test Yourself
Circulatory System consists of
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Heart
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Blood Vessels
HEART
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Pumps blood to all parts of the body
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in between the lungs almost in the centre of the chest
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Has 4 chambers
BLOOD VESSELS
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Transport blood to all parts of the body
The excretory system consists of
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Urinary Bladder- stores urine
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Ureter- tubes connecting the kidney and urinary bladder
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Kidneys
Watch the video to understand more about teeth:
Tooth Anatomy
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Watch This Video