Coronary artery bypass grafting (CABG) is a surgical procedure that improves blood flow to the heart tissue and can effectively treat myocardial ischemia caused by coronary artery disease. In CABG, a healthy blood vessel ...
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Genetic mechanisms behind the brain's unique left–right differences are now better understood with new research, paving the way for better understanding of human disorders where brain asymmetry is disrupted.
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Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, origin, evolution, distribution, and taxonomy. Biology is a vast subject containing many subdivisions, topics, and disciplines. Among the most important topics are five unifying principles that can be said to be the fundamental axioms of modern biology:
Subdisciplines of biology are recognized on the basis of the scale at which organisms are studied and the methods used to study them: biochemistry examines the rudimentary chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues, organs, and organ systems of an organism; and ecology examines how various organisms interact and associate with their environment.
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