Mature - Red

: As these cells age, signals on their surface trigger their removal from the bloodstream by the spleen and liver. Other Related Contexts

: Postmature infants (born after 42 weeks) may have skin with a purplish-red hue (acrocyanosis) or a "harlequin color change" where half the body appears bright red. mature red

: Mature red blood cells lack a nucleus and most organelles (like mitochondria) to maximize space for hemoglobin, the protein that carries oxygen. : As these cells age, signals on their