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Questions and Answers
Where are the solid parts of blood made?
Where are the solid parts of blood made?
What is the main component of plasma?
What is the main component of plasma?
What determines a person's blood type?
What determines a person's blood type?
How long does it take for blood to travel throughout the entire body?
How long does it take for blood to travel throughout the entire body?
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What is unique about the blood of earthworms and crabs?
What is unique about the blood of earthworms and crabs?
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What percentage of blood is made up of plasma?
What percentage of blood is made up of plasma?
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What is the main function of white blood cells?
What is the main function of white blood cells?
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What happens when platelets stick to a broken blood vessel?
What happens when platelets stick to a broken blood vessel?
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What is the main job of red blood cells?
What is the main job of red blood cells?
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What does plasma transport in the body?
What does plasma transport in the body?
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Study Notes
Components of Blood
- Blood is composed of a liquid called plasma and three types of cells: red blood cells, white blood cells, and platelets.
- Plasma makes up over half of blood and transports nutrients, proteins, and waste throughout the body.
- Red blood cells carry oxygen to all cells in the body.
- White blood cells protect the body from infection by attacking and killing germs.
- Platelets stick to broken blood vessels to stop bleeding and fix damaged vessels.
Blood Production
- The bone marrow in the middle of bones produces the solid parts of blood, including red and white blood cells and plasma.
- Plasma is mostly made of water, which is absorbed by the intestines from the food and drink we consume.
Blood Types
- There are four main types of blood, described by the presence of A and B proteins on red blood cells.
- Type A blood has A proteins, type B blood has B proteins, type AB blood has both A and B proteins, and type O blood has no proteins.
Blood Facts
- The average person has 1.5 gallons of blood in their body.
- It takes less than one minute for blood to travel throughout the entire body.
- Not all blood is red; earthworms have green blood and crabs have blue blood.
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Description
Learn about the composition and functions of blood in our bodies. Understand how it delivers oxygen, removes waste, and fights infections.
