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Questions and Answers
What is the primary function of red blood cells (RBCs)?
What is the primary function of red blood cells (RBCs)?
- To transport nutrients and metabolic waste
- To help in blood clotting
- To transport oxygen to different parts of the body (correct)
- To protect the body against infections
What role do white blood cells (WBCs) play in the body?
What role do white blood cells (WBCs) play in the body?
- They aid in oxygen transport
- They assist in blood clotting
- They protect the body against infections (correct)
- They help in transporting nutrients
What is the function of platelets in the circulatory system?
What is the function of platelets in the circulatory system?
- To help in blood clotting at injury sites (correct)
- To transport oxygen throughout the body
- To protect against disease
- To assist in nutrient transport
Which component of blood is responsible for transporting nutrients and metabolic waste?
Which component of blood is responsible for transporting nutrients and metabolic waste?
What does the circulatory system consist of?
What does the circulatory system consist of?
Flashcards
Diffusion
Diffusion
The movement of molecules or atoms from an area of higher concentration to an area of lower concentration.
Circulatory System
Circulatory System
A network of blood vessels, the heart, and blood that transports oxygen and nutrients throughout the body.
Blood
Blood
The fluid that flows through the circulatory system, containing red blood cells, white blood cells, platelets, and plasma.
Red Blood Cells (RBCs)
Red Blood Cells (RBCs)
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White Blood Cells (WBCs)
White Blood Cells (WBCs)
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Study Notes
Diffusion
- Diffusion is the movement of molecules or atoms from an area of higher concentration to an area of lower concentration.
Circulatory System
- Humans have a well-developed transportation system called the circulatory system.
- The circulatory system consists of blood, blood vessels, and the heart.
- Blood is the fluid that flows within blood vessels.
- An average human has 4 to 6 liters of blood.
Blood Components
- Red Blood Cells (RBCs): Specialized blood cells that are red due to hemoglobin.
- Hemoglobin transports oxygen throughout the body.
- White Blood Cells (WBCs): Specialized cells that protect the body from infection.
- Also known as the "soldiers of the body."
- Platelets: Small fragments of bone marrow cells that help blood clot at injury sites.
- Plasma: The straw-colored fluid part of blood that transports nutrients and metabolic waste.
Blood Vessels
- Three types of blood vessels are present in the body's blood network: arteries, veins, and capillaries.
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