Which term refers to the study of blood?

• A. Cardiology
• B. Hematology
• C. Cytology
• D. Neurology

Answer: (B)

The term that refers to the study of blood is hematology. Hematology is a branch of medicine that focuses on the diagnosis, treatment, and prevention of disorders related to blood and blood-forming tissues. This field encompasses various blood-related conditions such as anemia, clotting disorders, and leukemias. Hematologists specialize in understanding the functions of blood cells, the formation of blood, and the diseases that affect the blood system.

In contrast, cardiology pertains to the study of the heart and its functions, cytology is focused on the study of cells, and neurology deals with the nervous system and brain disorders. Each of these fields has its specific focus and does not encompass the study of blood as hematology does.