Multiple Choice
What is the approximate total blood volume of an average-sized adult?
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17. The Blood
Introduction To Blood
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In the context of Introduction to Blood, the liquid portion of blood is called what?
A
Plasma
B
Serum
C
Hematocrit
D
Erythrocytes
Verified step by step guidance1
Understand that blood is composed of two main components: the liquid portion and the cellular portion.
Recall that the liquid portion of blood is the fluid that carries cells and various substances throughout the body.
Identify the term used for this liquid portion, which contains water, proteins, nutrients, hormones, and waste products.
Differentiate between the options: 'Plasma' is the liquid part, 'Serum' is plasma without clotting factors, 'Hematocrit' refers to the percentage of red blood cells, and 'Erythrocytes' are red blood cells themselves.
Conclude that the correct term for the liquid portion of blood, including clotting factors, is 'Plasma'.
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