Hematologic system comprises of blood, blood vessels, and blood-forming organs. Blood is a fluid connective tissue that carries oxygen, glucose, and nutrients throughout the body. It mainly consists of four types of components, namely red blood cells (RBCs), white blood cells (WBCs), plasma, and platelets.

Question

For a person whose hematocrit is 45%, a. plasma volume would be 55% of total blood volume b. plasma volume would be 45% of total blood volume c. red blood cell volume would be 55% of total blood volume d. white blood cell volume would be 45% of total blood volume All of the following characteristics of platelets are true EXCEPT a. Exhibit many vesicles b. Have nucleus c. Platelets are fragments of megakaryocytes d. Smallest size compared to other blood cellular components of 2- 4 μm If someone has no megakaryocytes, he/she will a. not be able to phagocytize bacteria b. have a reduced ability to prevent blood loss c. not be able to make red blood cells d. not be able to make white blood cells

Answer 1

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Chapter 8, Problem 1SQ

Summary Introduction

Introduction: Hematologic system comprises of blood, blood vessels, and blood-forming organs. Blood is a fluid connective tissue that carries oxygen, glucose, and nutrients throughout the body. It mainly consists of four types of components, namely red blood cells (RBCs), white blood cells (WBCs), plasma, and platelets.

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