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Q. How does the heart impel the blood?
The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which blood passes. The blood enters the heart in the atria, goes to the ventricles and then leaves the organ, the blood is pumped out of the heart by the contraction of the muscle fibers that form the ventricular walls the contraction reduces the ventricle volume thus increasing the internal pressure and the blood then flows to the exit vessels pulmonary artery for the right ventricle and aorta for the left ventricle, When ventricular muscle fibers distend the ventricles regain their original size and receive new blood flow coming from the atria.
Explain about Hypothalamus Another important part of brain is hypothalamus. It is very small in sie. It controls many important functions which are as follows: Blood pre
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Q. What do you mean by Primary Visual and Auditory Cortex? Primary Visual Cortex - in posterior aspects of occipital lobes. Receives visual information from optic nerve (crani
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Q. What are the periods of the second meiotic division? Meiosis II is divided into metaphase II, prophase II, anaphase II and telofase II.
ARE BONY FISHES AMMONOTELIC?!
Relative to carrying capacity, what may result from unbridled continued growth of our population.
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Explain about the forces acting on a gravity retaining wall. Forces Acting on a Gravity Retaining Wall: In a general way the forces that act on a gravity retaining wall. The
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