Who was the first person to observe and
describe red blood cells in humans?

Red blood cells:

1. Red blood cells also known as Erythrocytes, are the cells found in blood and made in the bone marrow.
2. Red blood cells contain protein hemoglobin which helps in oxygen transportation.
3. Because of the presence of pigment hemoglobin, the red blood cells appear red.

Discovery:

1. Antonie van Leeuwenhoek was the first person who observed and described red blood cells in humans as well as in other animals.
2. By using a microscope described cells in a drop of pond water.