Red blood cells in a blood vessel
Erythrocytes are biconcave in shape and are the prime oxygen-carrying cell in blood. Also they are absolutely beautiful, as seen in this electron micrograph.
Credits: Michael Webb/Visuals Unlimited, Inc
from Daily Anatomy
View the new video abstract on Management of Vaginal Atrophy: Implications from the REVIVE Survey, published in Clinical Medicine Insights: Reproductive Health.