Formed elements make up what percentage of blood?

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Prepare for the UCF PCB3703C Human Physiology Lab Exam 2 with our practice resources. Study with multiple-choice questions, complete with hints and detailed explanations. Ace your assessment!

The correct percentage of formed elements in blood is approximately 45%. Blood consists of both formed elements and plasma, where the formed elements include red blood cells, white blood cells, and platelets. The remaining volume of blood is primarily composed of plasma, which makes up about 55% of the total blood volume.

Understanding this distribution is crucial because it highlights the significant role that formed elements play in the body's functions, such as oxygen transport by red blood cells, immune response by white blood cells, and clotting through platelets. The balance between these components is vital for maintaining homeostasis and overall health.