Human organ system
Definition:
The human organ system is a group of organs that work together to keep our body alive and health.
Interesting points:
The brain uses energy all the time, even when we are resting.
The heart starts beating before we are born.
The lungs help us laugh, cry, and talk.
The stomach needs strong juices to break down food.
The liver stores energy for the body.
Bones are strong but light, helping us move easily.
Muscles pull bones to make us move.
The kidneys help keep water balance in our body.
The skin protects our body from germs.
All organ systems work together like a team every second.
Main points:
The human body has many organ systems.
An organ system is a group of organs working together.
Each organ system has a special function.
The digestive system digests food and gives energy.
The respiratory system helps us breathe.
The circulatory system carries blood and oxygen.
The nervous system controls body actions.
The skeletal system gives shape and support.
The muscular system helps in movement.
The excretory system removes waste from the body.
Functions:
Digestive system – Digests food and gives energy.
Respiratory system – Helps us breathe (takes in oxygen, gives out carbon dioxide).
Circulatory system – Carries blood, oxygen, and nutrients to all body parts.
Nervous system – Controls thinking, feelings, and body actions.
Skeletal system – Gives shape and support to the body and protects organs.
Muscular system – Helps the body move.
Excretory system – Removes waste from the body.
Fun Fact:
Your heart never stops working—it beats every minute of your life.