components of blood: red blood cells Flashcards
1
Q
red blood cells
erythrocytes
A
transport o2 and co2, 44% of blood
bioconcave shape to provide a greater surface area for gas exchange
enucleated to provide more room to carry hemoglobin
produced in bone marrow (erythropoeisis)
2
Q
hemoglobin
A
iron-containing protein
composed of heme, which binds to oxygen
hemoglobin+oxygen=oxyhemoglobin
3
Q
how do rbc’s transport o2 throughout the body
A
o2 binds to hemoglobin in rbc’s during gas exchange in the capillaries and alveoli. the o2 rich blood travel from the lungs to the heart through the pulmonary vein, where it is then pumped by the aorta around the body
