MRCP UK EXAMINATIONS

NEUROLOGY

SURGERY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The principal function of the erythrocyte, which is composed primarily of ____, is to ____
A
myofibril; transport oxygen between the lungs and the tissues
B
T cells; transport oxygen between the lungs and the tissues
C
hemoglobin; transport oxygen between the lungs and the tissues
D
white blood cells; transport oxygen between the lungs and the tissues
Explanation: 

Detailed explanation-1: -Red blood cells, also known as erythrocytes, deliver oxygen to the tissues in your body. Oxygen turns into energy and your tissues release carbon dioxide. Your red blood cells also transport carbon dioxide to your lungs for you to exhale.

Detailed explanation-2: -The primary functions of erythrocytes are to pick up inhaled oxygen from the lungs and transport it to the body’s tissues, and to pick up some (about 24 percent) carbon dioxide waste at the tissues and transport it to the lungs for exhalation. Erythrocytes remain within the vascular network.

Detailed explanation-3: -Hemoglobin contains iron, which allows it to pick up oxygen from the air we breathe and deliver it everywhere in the body. You can think of hemoglobin as the iron ("heme"), oxygen transport protein, ("globin") found in red blood cells. It’s the hemoglobin that gives red blood cells their color, too.

Detailed explanation-4: -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-5: -Hemoglobin is the oxygen-carrying protein that is found within all RBCs.

There is 1 question to complete.