Class 4 Human Body Systems and Functions Q & A

Last updated on May 21st, 2021 at 11:10 pm

The Human Body Systems & its Functions ,There are many organ systems in our body such as Excretory ,circulatory ,nervous System etc.

The Human Body Systems & its Functions

Some of the major organs of the human body are

  1. Nervous System
  2. Respiratory system
  3. Circulatory system
  4. Excretory system
  5. Digestive system

Nervous system

Nervous system consists of Brain

Brain is located in the head inside the skull it is divided into three parts.

  1. Cerebrum
  2. Cerebellum  
  3. Medulla oblongata.

Function of Brain: – the brain helps us think, it control the functions and actions of different parts of our body.

Respiratory system

It consists of Nose, windpipe and Lungs.

The respiratory system has to bring oxygen into the body and remove carbon dioxide from the body.

This can be done through the process of Breathing.

Breathing in air is called inhalation and breathing out air is called exhalation.

We have two lungs located in the chest, one on each side. The lungs are like balloons that help us take in oxygen from the air we breathe in and give out carbon dioxide through the air we breathe out.

Circulatory system:-

The circulatory system is an organ system that has to transport substances within our body.

This system consists of heart blood and blood vessels.

Heart is a muscular organ that pumps blood to all parts of the body

Blood is a fluid that is carried by blood vessels to all parts of the human body. Through blood vessels, nutrients water Oxygen and Carbon dioxide and waste products are transported inside our body

Blood vessels

Blood vessels are thin tubes that run throughout the entire body to transport Blood.

Updated: 21 May 2021 — 11:10 pm

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