Respiratory System

Respiratory system helps us to breathe in and out. The organs involved in our breathing system consist of nose, wind-pipe and lungs.

From the atmosphere, air is taken in by our nose and it goes to lungs through the wind pipe. In the lungs blood absorbs the oxygen from the air.

 This oxygen helps in oxidizing the food in the blood to produce carbon-di-oxide and give us energy.

The carbon-di-oxide and water vapors produced in the process are breathed out from the lungs. In the breathing system, lungs play an important role in taking in oxygen and giving out carbon-di-oxide.







Fourth Grade

From Respiratory System to HOME PAGE

New! Comments

Have your say about what you just read! Leave me a comment in the box below.


Recent Articles

  1. Physiological Effects of Plant Growth Regulators | Auxin, Gibberellins

    Jun 09, 25 03:40 AM

    Plant Hormones and Growth
    Internal regulators of growth and development internal regulator of growth and development are genetic factors and growth regulator as these are important internal regulator. Best genetic factors are…

    Read More

  2. Characteristics of Plant Growth Regulators | Definition | Functions |

    Apr 27, 25 01:21 PM

    Plant Growth Regulators
    Definition of plant growth regulators- This are very small molecules synthesized from the cells of different parts which are associated with the plant cell growth. Growth in unicellular organism emplo…

    Read More

  3. Plants Development | Definition | Leaf Development | Factors Affecting

    Apr 22, 25 02:31 PM

    Definition of development- development is a biological process which can be defined as the process in which there is sequence of qualitative changes towards a higher or more Complex state.It consists…

    Read More

  4. Differentiation, Dedifferentiation and Redifferentiation | Definition

    Apr 21, 25 01:16 PM

    Differentiation
    Cells from the root apical meristem and shoot apical meristem the camera that differentiate , mature to perform different functions. This process by which the cells undergo different major structural…

    Read More

  5. Explain about Growth in Plants |Definition of Growth & Differentiation

    Feb 27, 25 02:07 PM

    Phases of Growth
    Growth is a permanent increase in length or volume of an organism that brought upon by an increase in its dimensions due to synthesis of new protoplasmic material.

    Read More