Excretory System

We eat various things daily which forms waste materials. Excretory system helps to remove wastes and toxic materials from the body.

The waste materials must come out of our body otherwise they will cause us diseases. Our excretory system does this important work.

The organs involved in this system are kidneys, skin, lungs and the large intestine. Kidneys filter the urine and throw it out. Skin lets out sweat and throws out salt. Lungs send out carbon-di-oxide and other impurities out of our body while breathing out. The large intestine throws out solid waste through the anus.

Thus, kidneys, skin and lungs constitute our excretory system. This keeps the body clean and healthy.












Fourth Grade

From Excretory 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