20 Questions
Which of the following is NOT a function of blood?
Regulation of tissue extracellular fluid
What is the major component of plasma?
Water
What are platelets?
Fragments of megakaryocytes
Where are blood cells produced in adults?
Red bone marrow
What is the structure of an erythrocyte?
Biconcave without a nucleus and organelles
Which of the following is a granulocyte?
Neutrophil
What is the function of an erythrocyte?
Transporting oxygen
What happens to plasma when it leaves the circulatory system?
It coagulates and becomes viscous
What is the function of platelets?
Blood clotting
What is the approximate volume of blood in adults?
6 L
What is the function of leukocytes in the blood?
Transporting immune cells and antibodies
Which of the following is NOT a major solute found in plasma?
Water
What is the function of platelets in the blood?
Hemostasis
What is the major component of plasma?
Proteins
Which of the following is a function of blood?
All of the above
What is the structure of an erythrocyte?
Biconcave with a lack of nucleus and organelles
What is the function of an erythrocyte?
Exchange of gases, nutrients, and wastes with most tissues
Which of the following is a granulocyte?
Neutrophils
What happens to plasma when it leaves the circulatory system?
It becomes viscous and yellow-tinged serum
Where are blood cells produced in adults?
Red bone marrow
Study Notes
Blood Function and Composition
- Blood has various functions, but it does not store nutrients.
Plasma Composition
- Plasma is the liquid part of blood, making up about 55% of total blood volume.
- Water is the major component of plasma, accounting for about 92%.
Blood Cells
- Platelets are small, irregularly-shaped blood cells that play a vital role in blood clotting.
- Blood cells are produced in the red bone marrow in adults.
Erythrocytes (Red Blood Cells)
- Erythrocytes, also known as red blood cells, are disk-shaped cells that lack a nucleus.
- The main function of erythrocytes is to carry oxygen from the lungs to the body's tissues.
Leukocytes (White Blood Cells)
- Leukocytes are an essential part of the immune system, helping to defend the body against infection.
Blood Circulation
- When plasma leaves the circulatory system, it becomes interstitial fluid.
- The approximate volume of blood in adults is 5 liters (11.3 pints).
Platelet Function
- Platelets help to form blood clots and stop bleeding when a blood vessel is injured.
Test your knowledge on blood components and cardiovascular physiology in this quiz. Learn about the classification of blood as connective tissue, the differences between plasma and interstitial fluid, and the structure of erythrocytes. Perfect for students studying medicine or biology.
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