The Mystical Fluid: History and Significance of Blood
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The Mystical Fluid: History and Significance of Blood

Explore the historical significance of blood as a vital fluid in the cardiovascular system and its association with life throughout human history. Understand the term 'lifeblood' and its significance in relation to existence.

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Questions and Answers

What did ancient Chinese physicians link blood to?

Energy flow in the body

What was the belief of ancient Western civilizations regarding disease-causing evil spirits?

The spirits circulated in the blood

Why was bleeding patients to cure disease not a standard form of treatment in ancient Chinese medicine?

Because blood was considered a vital fluid to be conserved and maintained

How did ancient Western civilizations believe disease-causing evil spirits could be removed from the body?

<p>By removing the blood containing them through bloodletting</p> Signup and view all the answers

What is the main component of plasma?

<p>Water</p> Signup and view all the answers

Which protein makes up about 60% of the total proteins in plasma?

<p>Albumins</p> Signup and view all the answers

What is the function of plasma proteins in relation to osmotic pressure?

<p>They increase the osmotic pressure of blood</p> Signup and view all the answers

Which part of the blood makes up about 25% of the total blood volume in a 70-kg man?

<p>Plasma</p> Signup and view all the answers

What is responsible for carrying material from one part of the body to another?

<p>Plasma</p> Signup and view all the answers

In ancient India, people believed that leeches could distinguish between what types of blood?

<p>Healthy and infected blood</p> Signup and view all the answers

According to Galen of Pergamum in the second century, what did he advocate as a treatment for many disorders?

<p>Bleeding</p> Signup and view all the answers

What did an American medical textbook advocate for treating certain infectious diseases as late as 1923?

<p>Bleeding</p> Signup and view all the answers

How much total blood volume does a 58-kg 'Reference Woman' have?

<p>~4 liters</p> Signup and view all the answers

What are the most prevalent types of protein in plasma?

<p>Albumins and globulins</p> Signup and view all the answers

What is responsible for making most plasma proteins and secreting them into the blood?

<p>Liver</p> Signup and view all the answers

What is the main component of plasma that accounts for about 92% of its weight?

<p>Water</p> Signup and view all the answers

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