WBC

Question 1

State the location of white blood cells (leukocytes).

Answer 1

• Blood vessels
• Lymphatic system
• Skin, Lungs and Spleen

Question 2

WBC Function

Answer 2

Defend against disease by pathogens, toxins, cancer and damaged cells

Question 3

Increased production of WBC

Answer 3

• Presence of microorganisms
• Strenuous exercise
  -Surgery and anaesthesia

Question 4

Discuss the relationship between monocytes and macrophages.

Answer 4

Monocytes do not remain in the blood for long before migrating to tissues become highly mobile macrophages which destroy bacteria and viruses by phagocytosis, this process is responsible for the pus formation as dead cells create debris, wandering macrophages roam tissues, fixed macrophages reside in specific body system sites.

Question 5

Eosinophils

Answer 5

Reduce the effects of inflammation during allergic reaction,
numbers increase during parasitic infection and allergies.

Question 6

Basophils

Answer 6

Release histamine which causes vasodilation and increases recruitment of other immune responses, causes increased inflammation numbers increase during allergic reaction.

Question 7

Neutrophils

Answer 7

Travel around the blood fighting infections, engulfing pathogens by phagocytosis, numbers increase during bacterial infection

Question 8

Monocytes

Answer 8

Produced in bone marrow and remain monocytes for a short amount of time before migrating from tissue

Question 9

Macrophages

Answer 9

Macrophages which destroy bacteria and viruses by phagocytosis, this process is responsible for the pus formation as dead cells create debris.

Question 10

State the haematological test used to measure white blood cell concentration.

Answer 10

Full blood count test