IMMUNOLOGY

OVERVIEW OF THE IMMUNE SYSTEM

LYMPHATIC TISSUES AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of blood is mainly responsible for carrying oxygen to body cells?
A
White blood cells
B
Red blood cells
C
Platelets
D
Capillaries
Explanation: 

Detailed explanation-1: -The main job of red blood cells, or erythrocytes, is to carry oxygen from the lungs to the body tissues and carbon dioxide as a waste product, away from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.

Detailed explanation-2: -Blood cells are made in the bone marrow. The bone marrow is the soft, spongy material in the center of the bones. It produces about 95% of the body’s blood cells.

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