Red Blood Cells

Which does NOT affect blood volume

• body size

• fluid retention

• body fat

• vitamin D

Blood functions to

• transport substances

• protect and support

• allow body movement

• digest nutrients

The formed elements of blood are

• red blood cells

• stem cells

• white blood cells

• platelets

The liquid portion of blood is called

• proteins

• adipose

• plasma

• viscosity

Blood is less viscous than water.

• True

• False

Hematocrit is composed of

• packed red blood cells

• packed white blood cells

• all of the formed elements

• plasma

Centrifugation separates samples by

• shape

• size

• density

• color

What percentage of blood is composed of rbc?

• 15%

• 90%

• 45%

• 33%

What is the term for the layer composed of wbc and platelets?

• PCV

• plasmid layer

• wp layer

• buffy coat

The formation of rbc is called?

• hematopoiesis

• erythroctyes

• hemoglobin

• stem cell formation