GEMP - Blood
Blood Introduction Blood is a vital fluid that circulates throughout the human body, playing a crucial role in sustaining life. It comprises cells, proteins, and various components that facilitate essential physiological functions. Understanding blood is fundamental in the field of medicine, as it underpins many diagnostic and therapeutic processes. Key Concepts 1. Composition of Blood Blo...
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Time limit: 4 minutes
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Question 1
What percentage of blood volume is composed of plasma?
Explanation
Plasma accounts for about 55% of the total blood volume, with the remaining volume made up of formed elements.
Question 2
Which of the following proteins in plasma is primarily responsible for maintaining osmotic pressure?
Explanation
Albumin is the protein in plasma that helps maintain osmotic pressure, which is crucial for fluid balance in the body.
Question 3
What is the primary role of red blood cells?
Explanation
Red blood cells (erythrocytes) are responsible for carrying oxygen from the lungs to body tissues and returning carbon dioxide for exhalation.
Question 4
What condition is characterized by a deficiency of red blood cells or hemoglobin?
Explanation
Anemia is a condition where there is a deficiency in red blood cells or hemoglobin, leading to symptoms like fatigue and weakness.
Question 5
Where does hematopoiesis primarily occur in adults?
Explanation
In adults, hematopoiesis, the production of blood cells, primarily takes place in the bone marrow of long bones, pelvis, and sternum.
Question 6
Which type of blood cell is primarily involved in immune defense?
Explanation
White blood cells (leukocytes) are key players in the immune response, protecting the body against infections and foreign invaders.
Question 7
What is a misconception about the appearance of blood?
Explanation
A common misconception is that all blood is bright red; in reality, deoxygenated blood can appear darker and bluish through the skin.
Question 8
What type of genetic disorder affects the blood's ability to clot?
Explanation
Hemophilia is a genetic disorder that significantly impacts the blood's ability to clot, leading to excessive bleeding.
Question 9
Which nutrient is primarily transported by blood?
Explanation
Blood transports various nutrients throughout the body, playing a crucial role in maintaining health and homeostasis.