Identify the type of white blood cell (leukocyte) shown in this anatomical model.

Answer

The model represents a Neutrophil. This identification is based on several key morphological features: 1. Multi-lobed Nucleus: The most prominent feature is the dark purple, segmented nucleus consisting of 3 to 5 lobes connected by thin strands of chromatin. This characteristic is why neutrophils are often called polymorphonuclear leukocytes (PMNs). 2. Cytoplasmic Granules: The cytoplasm of the model contains numerous small, fine dots or granules. In a real cell, these granules take up both acidic (red) and basic (blue) stains, resulting in a neutral lilac or pale pink appearance, which the red/pink background of the model mimics. 3. Relative Size: Neutrophils are the most abundant type of granulocyte and play a crucial role in the innate immune system by being the first responders to bacterial infections through phagocytosis.