Les humains adultes ont environ 2 & ndash ; 3 & times ; 1013 -LRB- 20-30 trillion -RRB- red blood cells at any given time, comprising approximately one quarter of the total human body cell number -LRB- women have about 4 to 5 million erythrocytes per microliter -LRB- cubic millimeter -RRB- of blood and men about 5 to 6 million ; people living at high altitudes with low oxygen tension will have more -RRB-.
Les globules rouges sont très nombreux ; chez les femmes, il y a 4,8 millions de globules rouges par microlitre de sang.