Respiratory Disorders

Those diseases or disorders that effect human respiration are called respiratory disorders. Following are some respiratory disorders found in humans. 1. Acute Bronchitis It occurs most commonly as a result of viral infection. It may also occur due to exposure in gases...

Mechanism of Breathing

The process of respiration takes place in two phases:     1. Inspiration and    2. Expiration 1. Inspiration Inspiration may be defined as the process of drawing in air into the lungs. It occurs with the help of diaphragm muscles. The muscles of diaphragm contract due...

Human Respiratory System

The human respiratory system is made up of many organs such as nose, nasal cavity, pharynx, larynx, trachea, bronchi and a pair of lungs. But, lungs are the main respiratory organs where exchange of gases takes place. Following is the detail of human respiratory...

Respiration in Fish

In aquatic animals such as fish respiration takes place through special respiratory organs called gills, however lung fish respiration takes place through lungs. Gills are present on both the sides of the head of fish. The gills are covered by gill covers also called...

Respiration in Earthworms

Earthworms are found in the soil. In the soil they eat dead and decaying organic matter along with soil. In return, they help in aeration of soil by digging holes in it and enhance fertility of soil. In earthworms there is no specialized organ to do respiration. So,...

Respiration in Insects

The process of breathing in insects such as grasshopper and cockroach is very slow. Insects do not breathe like human beings. Insects do not have lungs to do respiration. In insects respiration takes place through tracheae. Tracheae are tube like structures that open...