Anatomy & Physiology Circulatory #15

Question

Which student statement regarding white blood cells (WBCs) requires clarification from the instructor?

Answers

  1. “Basophils are a type of WBCs.”
    • Rationale:

      This student statement is true as basophils are a type of WBC; therefore, no clarification from the instructor is required.

  2. “Eosinophils are a type of WBCs.”
    • Rationale:

      This student statement is true as eosinophils are a type of WBC; therefore, no clarification from the instructor is required.

  3. “Lymphocytes are a type of WBCs.”
    • Rationale:

      This student statement is true as lymphocytes are a type of WBC; therefore, no clarification from the instructor is required.

  4. “Erythrocytes are a type of WBCs.”
    • Rationale:

      This student statement requires clarification from the instructor as erythrocytes is the medical term for RBCs and they are not a type of WBC.

Overview

Leukocytes are a colorless white blood cell (WBC) that circulates in the blood and body fluids.

Explanation

Learning Outcomes

WBCs are primarily responsible for counteracting foreign substances and disease within the blood. Therefore, they are the blood cell of the circulatory system that is responsible for fighting infection. There are many different types of WBCs (e.g., basophils, eosinophils, lymphocytes, monocytes, and neutrophils). Erythrocytes, however, are a type of red blood cell (RBC), not a type of WBCs.

Test Taking Tip

Ask yourself if each statement is true or false. The false statement is correct as this is the one that requires clarification from the instructor.

Video Rationale