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Explain Cough reflex Actions - Respiratory Process
Cough reflex causes cough due to irritation of some receptors in tracheo-bronchial tree. It is a protective reflex. The irritation may occur in the vagal sensory nerve endings of the larynx, trachea etc. Chemically induced coughing occurs due to inhalation of gas. Cough, either mechanically or chemically induced, is a sudden forcible expiratory act.
Define the Peripheral Nervous System The peripheral nervous system or PNS, is a part of the nervous system and consists of the nerves and neurons that reside or extend outside
Factors decide the broad area of scientific activity
Types of Resource Maps: Generally, several types of maps, based on the type of.resburces, are prepared. Some of these are: Soil Maps showing the types of soil, their comp
how do temperature affect the soil
A field trip to study erosion Find some place in the locality where running water has complete damage by cutting gulleys. Take the class to study the erosion. Why was it caused
The water will not run through the cloth Choose a glass jar and a piece of cloth from an old sheet or handkerchief. Fill the jar with water. Wet the cloth well, stretch it over
Storage and handling of chemical substances are two important duties of a laboratory worker. Both of these require appropriate safety measures to avoid any accident. In this secti
What are 6 characteristics of mastigophora
Q.What is the greenhouse effect? Some gases like carbon dioxide, methane, nitrous oxide prevent the escape of heat from the Earth's surface by trapping it. This increases the av
Driving a boat by surface tension Secure some gum camphor at the drug shop. Cut two or three boats from stiff paper, every about 2.5 cm in length. Cut a notch in the stern larg
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