Blood Physiology: Hematopoiesis, Roles, and Components

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Which of the following components is found in the buffy coat of a blood sample after centrifugation?

Plasma proteins

White blood cells (correct)

Platelets

Red blood cells

What is the approximate pH range of blood in a healthy human?

7.5 - 8.0

7.35 - 7.45 (correct)

6.5 - 7.0

7.0 - 7.3

What is the approximate volume of blood in a healthy adult female?

3-4 L

6-7 L

4-5 L (correct)

5-6 L

Which blood component is responsible for the transport of oxygen to body tissues?

Red blood cells Signup and view all the answers

What is the approximate percentage of red blood cells (RBCs) in blood, as measured by hematocrit?

35-45% Signup and view all the answers

How do we obtain blood plasma from a whole blood sample?

By allowing the sample to clot and then removing the clot Signup and view all the answers

What is the normal range of hematocrit for men?

42-52% Signup and view all the answers

What does a lower-than-normal hematocrit indicate?

Iron deficiency Signup and view all the answers

What does a higher-than-normal hematocrit indicate?

Polycythemia Signup and view all the answers

What happens to the hematocrit immediately after hemorrhage?

It remains normal Signup and view all the answers

At hematocrits >60%, what happens to the cells?

Further increases lead to cell-cell interactions that increasingly deform the RBCs Signup and view all the answers

What is the main difference between plasma and serum?

Serum lacks fibrinogen and other coagulation factors present in plasma Signup and view all the answers

Which of the following proteins is involved in transporting lipids and fat-soluble vitamins?

Albumin Signup and view all the answers

What color of plasma suggests the presence of hemoglobin caused by hemolysis?

Pink-colored Signup and view all the answers

What are cytokines?

Proteins released from one cell that affect the growth or activity of other cells Signup and view all the answers

Which type of blood cells are actively produced in all the bones in children?

WBCs (White Blood Cells) Signup and view all the answers

What is the main role of hematopoiesis?

Generation of all cell types present in blood Signup and view all the answers

Which type of blood cell increases mostly in chronic diseases?

Monocytes Signup and view all the answers