Process of Respiration

In this blog, we will try to understand human respiration. Respiration can be defined as the transport of oxygen  from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction.


We will try to understand the process of respiration, with a neat diagram to explain it:

 1)  Inspiration: 

          Inspiration process is when muscles attached to ribs and diaphragm contract together, increasing the volume of the thoracic cavity laterally and dorso- ventrally.

   2)  Expiration:

           Expiration is a passive process. The muscles of diaphragm and other muscles attached to ribs relax, the diaphragm becomes convex and ribs attain their original shape. T

I hope this was useful, send me your comments and suggestions.

Define Atom

Lets try to define atom and understand the different parts of a atom. Atom can be defined as a basic unit of matter consisting of a dense, central nucleus surrounded by a cloud of negatively charged electrons. The atoms are having many chemical properties of the elements. The structure of the atom are having the nucleus at its center. The electrons are also present in the atom. The electron is always surrounds the nucleus part. The particles like protons and neutrons are also present in the atom.

 

The atomic structure consists of three types of particles. They are defined below the following,
1. Protons
2. Neutrons
3. Electron

I hope this was useful. Please send in your comments and suggestions to improve these blogs.

Parts of eye

In this post we will learn about the different parts of eye. Find below eye picture, which shows us the different parts of the eye.

The important parts of an eye are:

1) Sclera:The sclera is the white of the eye

2) The Cornea: The cornea is the clear bulging surface in front of the eye. It is the main refractive surface of the eye

3) Anterior & Posterior Chambers

4) Iris/Pupil

5) Lens 

6) Vitreous Humor 

7) Retina

These are the important parts of an eye, they are very sensitive and need to be taken care very  carefully, I hope this post was useful.

     

Types of Viruses

A virus can be defined as a tiny organism that causes an infection in the body. Viruses are made up of the genetic material known as DNA or RNA, which the virus uses to replicate. In order for a virus to survive, it must invade and attach itself to a living cell. It will then multiply and produce more virus particles.

Viruses can affect any part of the body or body system, and can cause infections such as the common cold, flu, gastroenteritis, chicken pox or herpes.

There are different types of viruses and can be broadly classified as below:


1) DNA Viruses

2) RNA Viruses

3) Latent Viruses 

Below are the types of human viruses, which cause diseases in human beings. :


DNA Virus: Small pox, herpesviruses

RNA Virus: measles, rabies, influenza

Latent Viruses: Lysogeny 


I hope this was helpful.