Red Blood Cells also known as red blood cells (RBCs) or erythrocytes are around 7.5μm in diameter. The average number (red blood cell count) is typically:
*5,200,000 per cubic millimeter ± 300,000 men
*4,700,000 per cubic millimeter ± 300,000 women
Red blood cells are made of hemoglobin. When the hemoglobin combines with oxygen it is called oxyhemoglobin, when oxygen has been released it is known as deoxyhemoglobin. The RBC initially have a nuclei during the early stages of development, they then remove the nuclei to help make room for hemoglobin.
Lesson 4 in our Cardiovascular System (Blood) series. This is part of our Anatomy and Physiology lecture series.
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Blood Videos
-Introduction to Blood (13:01): http://youtu.be/-Y5U49E-CM4
-Composition of Blood (13:02): http://youtu.be/YHCIMKZ0zrg
-Hematopoiesis-Making Blood (13:03): http://youtu.be/sibrcrXHJGI
-Red Blood Cells (13:04): http://youtu.be/19_6kUCVYfk
Heart and Blood Vessels Videos
-Heart Fundamentals (14:01): http://youtu.be/Y335KJ-EuDw
-Layers of the Heart (14:02): http://youtu.be/8PlwFTwJRMQ
-Chambers in the Heart (14:03): http://youtu.be/SdNQtPzUfHg
-Introduction to Blood Vessels (14:08): http://youtu.be/GVs8cd6jv94
-Types of Blood Vessels (14:09): http://youtu.be/_jkQR8v-bAg
-Movement of Blood (14:11): http://youtu.be/x9dH5TpKntk
