Multiple Choice
In the context of blood composition, what kind of mixture is blood?
17. The Blood
Introduction To Blood
Struggling with Anatomy & Physiology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In an average adult, plasma makes up approximately what percentage of whole blood by volume?
A
About 75%
B
About 25%
C
About 55%
D
About 45%
Verified step by step guidance1
Understand that whole blood is composed of plasma and formed elements (such as red blood cells, white blood cells, and platelets).
Recall that plasma is the liquid component of blood, which carries nutrients, hormones, and waste products.
Recognize that the volume percentage of plasma in whole blood is known as the hematocrit complement (since hematocrit measures the percentage of formed elements).
Know that in an average adult, plasma typically makes up about 55% of the total blood volume, with the remaining 45% being formed elements.
Therefore, the approximate percentage of plasma by volume in whole blood is about 55%.
6:11mWatch next
Master Functions of Blood with a bite sized video explanation from Bruce Bryan
Start learningRelated Videos
Related Practice
Introduction To Blood practice set
Problem sets built by lead tutorsExpert video explanations