Premature atrial complexes (PAC) dysrhythmia has a cardiac complex that occurs too soon and may have abnormal p waves, but other than being ''early,'' has no other abnormal features.
<h3>What is Cardiology?</h3>
- Cardiology is a field of medicine that deals with problems with the heart and cardiovascular system.
- The term "cardiology" comes from the Ancient Greek words "kardi" (heart) and "-logia" (study).
- Heart failure, valvular heart disease, congenital heart defects, coronary artery disease, and electrophysiology are all covered in the field's spectrum of medical diagnosis and treatment.
- Cardiologists are among the professionals in internal medicine who work in this area.
- Pediatricians that specialize in cardiology are known as pediatric cardiologists.
<h3>Why does cardiac happen?</h3>
- Nearly all heart conditions that are known to exist can result in cardiac arrest.
- The electrical system of a damaged heart malfunctions most frequently during cardiac arrests.
- An aberrant heart rhythm like ventricular tachycardia or ventricular fibrillation is brought on by this defect.
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In science, a theory is a hypothesis, and a law is a statement of a observed phenomenon proven to be true.
- A theory explains why a natural phenomenon occurs.
- Scientific laws summarize a set of observations about a natural phenomenon that was witnessed.
- Both can be revised, used to make predictions, and are based off of a hypothesis.
The correct answer is that mammals use a closed, double loop , four chambered heart as a circulatory system of the body.
The circulatory system of mammals is closed system that consists of four chambers, two articles and two ventricles. The deoxygenated blood comes into the heart from one loop and the oxygenated blood from other loop from the heart is circulated to the whole body. This is called as double circulation.
Answer:
<em>Like every other organism the population size of the humans have increased over time.</em>
Explanation:
With the improvements in science and technology, life becomes better and better for human beings. In the past, when there were no discoveries for curing diseases, the human population declined because of the spread of various diseases and famine conditions.
But as the developments in the scientific world are made, it has been easier to cure diseases and other problems. As a result, the population size of the human goes on increasing.
