L5 - Role of the Immune System Flashcards
1
Q
what is the immune system
A
a network of cells and tissues that defends the body against invading pathogens, destroys abnormal cells within the body and removed ‘worn-out’ cells
2
Q
what are pathogens
A
infection-causing organisms
3
Q
what is the site of B cell development
A
bone marrow
4
Q
what is the site of T cell development
A
thymus
5
Q
what are leukocytes
A
mobile units of body’s immune defence system
6
Q
what are neutrophils
A
most abundant leukocyte
destroy bacteria by phagocytosis
