The same cell that also is found in any mammal, red blood cells.
I'm not quite sure how it would ENHANCE oxygen transfer, but hemoglobin itself is what is in blood and is responsible for the carrying of oxygen to different parts of the body. So the hemoglobin in a fetus would just be what is used to get the oxygen from the mothers blood into its blood.
Red blood cells are responsible for oxygen exchange
blood
Haemoglobin is the red pigment found in Erythrocytes which is responsible for transfer of Oxygen. Hematic is the adjective which means related to blood.
Hemoglobin is the substance in the blood responsible for carrying oxygen to the tissues. It is a protein found in red blood cells that binds to oxygen in the lungs and releases it to the body's tissues and organs.
The lungs are primarily responsible for oxygenating the blood. When you breathe in, the lungs take in oxygen from the air and transfer it to the bloodstream where it can be delivered to cells in the body.
The two organs responsible for bringing oxygen into the body are the lungs and the cardiovascular system. The lungs extract oxygen from inhaled air and transfer it to the bloodstream, while the cardiovascular system circulates the oxygenated blood throughout the body to deliver it to cells.
Blood is responsible for carrying nutrients and oxygen to your cells. Also a way to dump out waste from the cells.
Red blood cells, specifically the protein hemoglobin within red blood cells, is responsible for carrying oxygen in the blood. Hemoglobin binds to oxygen in the lungs and transports it to tissues throughout the body.
Haemoglobin! Carriage of oxygen by red blood cells. Appearence of oxygenated blood-bright red.
Red corpuscles (red blood cells) carry oxygen in the bloodstream.
Hemoglobin is the component of blood that contains iron and is responsible for binding with oxygen.