Anatomy & Physiology Hematological #14

Question

Which organ produces and stores erythrocytes while also removing red blood cells (RBCs) and hemoglobin that are no longer usable?

Answers

  1. Spleen
    • Rationale:

      The spleen is the hematological structure that is responsible for both the production and storage of erythrocytes. In addition, the spleen removes RBCs and hemoglobin that are no longer usable within the human body.

  2. Gallbladder
    • Rationale:

      The gallbladder stores bile. This structure is not responsible for hematopoiesis.

  3. Bone marrow
    • Rationale:

      While the bone marrow produces erythrocytes, it is not responsible for storing them nor in removing RBCs and hemoglobin that is no longer usable to the body.

  4. Cardiac muscle
    • Rationale:

      The cardiac muscle is responsible for pumping blood that is moved throughout the circulatory system. This structure is not responsible for hematopoiesis.

Overview

There are three primary types of blood cells within the body: red blood cells (RBCs) or erythrocytes, white blood cells (WBCs), and platelets.

Explanation

Learning Outcomes

Hematopoiesis is the medical term for the production of blood cells. Erythrocytes, or RBCS, are primarily produced by the bone marrow and stored in the spleen. In addition to storing and producing erythrocytes, the spleen also removes RBCs and hemoglobin that are no longer usable to the body.

Test Taking Tip

Consider the structure and function of each organ to correctly answer this question.

Video Rationale