The pulmonary circulation conveys blood that is low in oxygen to the lungs before returning back to the left side of the heart.
<h3>The pulmonary circulation</h3>
The circulatory system is divided into two main parts namely:
- pulmonary circulation and
The pulmonary circulation involves the movement of blood between the lungs and the heart.
Blood from the systemic circulation returns to the right side of the heart where it is pumped through the pulmonary artery into the lungs to be oxygenated.
After oxygenation has taken place in the lungs, the blood returns to the left side of the heart through the pulmonary veins.
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Reviewing of articles summarizes the current state of understanding on a topic within a certain discipline.
<h3>What is an article review?</h3>
This is a type of professional paper writing which demands a high level of in-depth analysis and a well-structured presentation of arguments and a critical evaluation of literature in a particular field through summary, classification, analysis, and comparison.
<h3>Introducing the main idea of an article:</h3>
The first sentence should explain the subject being discussed in the passage.
A signal phrase is a short introductory phrase that indicates that a quote or paraphrase is coming. To introduce a signal phrase, you provide an effective transition between your own ideas and the evidence used to explore your ideas.
To include a quote, use the author's last name and the page number from which the quotation or paraphrase is taken.
To include a sentence which discusses the quote chosen, you:
- Use a full sentence followed by a colon to introduce a quotation.
- Begin a sentence with your own words, then complete it with quoted words.
- Use an introductory phrase naming the source, followed by a comma to quote a critic or researcher.
Hence, a review article is generally considered a secondary source since it may analyze and discuss the method and conclusions in previously published studies.
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