FILL IN EVALUATION FORM  

RED BLOOD CELL

STRUCTURE & FUNCTION

Red blood cells at x1000 magnification
Photographed by U. Woermann, MD
Division of Instructional Media, Institute for Medical Education, University of Bern, Switzerland
Permission granted by U. Woermann, MD

 

  • Red blood cells are flattened, biconcave discs

  • They do not possess nuclei or mitochondria

  • In adulthood they are produced in the bone marrow

  • They have a circulating lifespan of approximately 120 days