Overview of the Hematologic System - White Blood Cells Flashcards
What is the abbreviation for White Blood Cells?
WBCs
Another word for WBCs is ____
Leukocytes
LEUKO- means ____
White
The main function of the WBCs is to what?
To defend against infection and foreign invaders
An increase in WBC count is usually an indicator of ____
Infection
WBCs are further divided into two main categories, called ____ and ____
- Granulocytes
* Agranulocytes
Granulocytes
These cells have a granular appearance under the microscope
Three main types of granulocytes are____
- Neutrophils
- Eosinophils
- Basophils
Neutrophils
Neutrophils are the most prevalent type of WBCs. They respond to bacterial infections, such as pneumonia or urinary tract infections, by engulfing the bacteria through the process of phagocytosis
If the infection is moderate or severe, the bone marrow will produce extra amounts of ____
Neutrophils
Eosinophils
Eosinophils are a type of granulocyte involved in allergic reactions. Their concentration may be elevated after allergic reactions to foods or drugs. Eosinophils also help fight infections by certain parasites and microorganisms
Basophils
Like the other granulocytes, they’re involved in the process of inflammation
Agranulocytes
These cells don’t have granular appearance under the microscope
Agranulocytes can be further classified as ____ and ____
- Lymphocytes
* Monocytes
Lymphocytes
Lymphocytes produce antibodies against foreign particles, such as microorganisms, drugs, cancerous cells, and cells from transplanted organs
