* Red blood cells (RBCs): These are biconcave discs, meaning they are shaped like flattened discs with a dip in the center on both sides. This shape allows for a larger surface area for oxygen absorption and makes them flexible to move through narrow blood vessels.
* White blood cells (WBCs): These come in various shapes, but are generally spherical or irregular and are larger than RBCs. Different types of WBCs have different shapes:
* Neutrophils: Multi-lobed nucleus, making them appear like segmented cells.
* Lymphocytes: Usually round with a large, round nucleus.
* Monocytes: Large, kidney-shaped nucleus.
* Eosinophils: Bi-lobed nucleus, often with bright red granules.
* Basophils: Bi-lobed nucleus, often with dark blue granules.
* Platelets: These are small, irregularly shaped fragments of cells that are crucial for blood clotting.
So, the shape of a blood cell depends on its function!
