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Explain the Vasomotor Centre and Cardio-Inhibitory Centre
The vasomotor centre (in the medulla ablongata) excites the respiratory centre. The pulmonary ventilation is increased. The factors which stimulate respiration may excite the vasomotor centre simultaneously. Cardio-inhibitory (which restrains the action of heart) centre inhibits the respiratory centers. Hence, during respiration, heart rate and BP may vary. During inspiration, there is usually a rise in the heart rate and BP.
Explain the Structure of Tongue The tongue is a muscular organ. It is covered with a mucous membrane. The tongue is attached by its base to the hyoid bone and by a fold of its
Observing changes of position of the earth with respect to the sun Mark a line on the floor or the wall where the sun shines in your room. Note the exact month, day and hour. A
Define the Blood Groups We start our discussion by answering the question - do all of us have the same blood group? No, each individual has a different blood group. The differ
Objectives : After studying this unit, you should be able to 1. explain the need for safety and health regulations using an example, 2. describe the use of National Buildi
Control of Environment: Control of environment is essential for maintaining good health. Environmental factors which are basic to individual and community health are housing
Medieval Science: We can record the sum total of the medieval achievement in the natural sciences in a few lines. It can be put down as a few notes on natural history a
Explain concept of Salting out Salting out: Proteins in aqueous medium can be precipitated by qdding, trichloroacetic acid (TCA) or perchloric acid (PCA). Salts of hea
describe the factors which decide the broad area of scientific activity
A simple mercury barometer Seal single end of a glass tube about 80 cm in length by rotating it in a gas flame. The tube should be held as almost vertical as possible. Join a s
can u explain me about ovaries and testes
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