Final answer:
The granular leukocytes include neutrophils, eosinophils, and basophils, and are known as polymorphonuclear leukocytes, characterized by their granular appearance and lobed nuclei.
Step-by-step explanation:
The granular leukocytes, which are also known as polymorphonuclear leukocytes, include neutrophils, eosinophils, and basophils. These types of white blood cells are distinguished by their lobed nuclei and the presence of granules within their cytoplasm, which can be stained and observed under a microscope. Neutrophils contain small granules that stain light lilac, eosinophils have slightly larger granules that stain reddish-orange, and basophils have large granules that stain dark blue to purple. These granulocytes are produced in the red bone marrow and play a crucial role as first-responders during injury or infection.